Black Mesa Research Facility

{{Otheruses|Black Mesa}}
{{Location Infobox
|image=FileBlack Mesa logo documents + text.svg|250px
|name=Black Mesa Research Facility
|constructed=1950s, then refurbished by Black Mesa before the Black Mesa Incident
|destroyed=200-, during the Black Mesa Incident
|location=WikipediaNew Mexico|New Mexico, USA, Earth
|builder=N/A, then Black Mesa
|era=Black Mesa Incident
|affiliation=Black Mesa
|maps=Most of the maps from ''Half-Life'' and its expansions
|designer=*Marc Laidlaw (backstory)
*Ted Backman''Half-Life 2 Raising the Bar'' (concept art)
*Kelly Bailey (concept art)
*Karen Laurhttp// ''Half-Life'' section on Karen Laur's official website (textures)
*Yatsze Markhttp// ''Half-Life'' section on Yatsze Mark's official website (textures)
*John Guthriehttp// Valve's staff page (mapping)
*Brett Johnsonhttp// ''Half-Life'' section on Brett Johnson's official website (mapping)
*http//,22343/ Dario Casali{{Wikipedia|Casali_brothers|Casali brothers}} (mapping)
*Dave Riller (mapping)
*Randy Lundeen (mapping)
*http//,56505/ Harry Teasleyhttp// Valve People (mapping)
*http//,440528/ Duncan (a.k.a. Sageous)http// Valve People http// Linkedin (mapping)
*List incomplete
{{Quote|The biggest embarrassment has been Black Mesa facility, but I think that's finally taken care of itself.|The G-Man|Half-Life Opposing Force}}

The '''Black Mesa Research Facility''',''Half-Life'' or '''B.M.R.F.''' for short,''Half-Life Decay'' is the headquarters of the Black Mesa|Black Mesa corporation and the primary setting for ''Half-Life'' and its three expansions, ''Half-Life Opposing Force|Opposing Force'', ''Half-Life Blue Shift|Blue Shift'', and ''Half-Life Decay|Decay''. It is located in the WikipediaNew Mexico|New Mexico desert, USA.''Half-Life''
== Overview ==

FileBS Cafeteria.jpg|thumb|right|200px|A fast food outlet seen by Barney Calhoun in the Black Mesa Transit System.

*The Black Mesa facility was apparently built over several decommissioned WikipediaIntercontinental ballistic missile|ICBM launching and testing silo complexes probably constructed during the 1950s, which was converted into a vast civilian institute for the research of almost every conceivable Black Mesa array|scientific discipline. Several ''Half-Life'' texture files' names contain the word "fifties", suggesting the facility is as old as from the 1950s. Some areas are also described by characters such as Rosenberg as "old" or "abandoned"; several areas of the complex are badly run-down despite the obvious fact that they are still in use. However the surface areas of Black Mesa feature more modern construction.

*Black Mesa undertakes its various scientific researches in the facility, which is a very high-security complex, as each employee is required to undergo a series of rigorous security checks to access most areas. Security guards, carrying firearms and trained for emergencies, are present everywhere. The complex is also equipped with retinal scanners and alarms, as well as heavy blast doors that may shut down in case of fire, explosion or other event. Black Mesa can be completely sealed from the outside.

FileTram interior.jpg|thumb|left|200px|One of Black Mesa's modern electric trams riding along the Black Mesa Transit System.

*The facility is apparently self-sufficient, housing its own ventilation, plumbing, sewage, and power generation systems including a Hydro-Electric Dam and multiple types of electrical generators and reactors, some using nuclear technology.

*The complex is dominated by a bewildering number of underground laboratories, test areas (including a powerful Anti-Mass Spectrometer), and administration offices, most of which contain very high-tech equipment, and even a rocket launch site.

*The complex also features multi-story car parks (where only Black Mesa SUVs can be found), arsenals of nuclear and conventional weapons, and a local electric rail materials transport network, Sector E Materials Transport.

*Black Mesa is also apparently kept supplied by a conventional freight rail linked to the outside, managed in the  Yard|Freight Yard.

FileVaguely repaired.jpg|thumb|right|200px|An example of the state of disrepair of some parts of the facility, here in a roughly repaired toxic waste storage unit.

*As employees are required to live in the complex itself, Black Mesa contains many personnel facilities, including laundromats,''Half-Life Blue Shift'' recreation and sports areas such as lounges,''''Half-Life Decay.html">Half-Life''''Half-Life Decay'' at least one basketball court, at least one swimming pool,''Half-Life Decay'' a library,''Half-Life Decay'' fast food outlets, food courts,''''Half-Life.html">Half-Life'' cafeterias,''Half-Life''''Half-Life Decay'' and numerous vending machines.

*The facility is well-populated by rest areas and dormitories for the employees of the facility. As Eli Vance reveals in ''Half-Life 2'' that his Azian Vance|wife and Alyx Vance|daughter lived in Black Mesa with him, it can be inferred that employees' families reside in the dormitory complexes as well.

*All main Sectors are linked together by the Black Mesa Transit System, the monorail network going through the whole facility.

*Black Mesa is equipped by a public address system, the Black Mesa Announcement System, relaying audible messages and announcements across the facility with a male voice. It is also used in the Black Mesa Transit System to give general information about the facility and mention each stop, with a female voice.

*The complex also has its own newspaper, ''The Mesa Times'', although it is unknown if it is an outside publication or exclusively made by the company for its personnel.

*Despite being located in the middle of a desert, the underground and indoor sectors of Black Mesa are "maintained at a pleasant 68° WikipediaFahrenheit|Fahrenheit (20° WikipediaCelsius|Celsius) at all times", enabled by Black Mesa's sprawling network of ventilation ducts.

*In the underground laboratories, administration offices and dormitories, the main sections are always indicated in important intersections areas, and follow color codes consisting of lines running along the corridors to the related location. Several colors can be seen running along corridors, disappearing each time a related location is reached. This is seen for instance in Sector C and the Level 3 Dormitories.

*Overall, Black Mesa is almost as large as a city and is completely self-sustainable in all fields.

*In the event of an emergency, the "Hazardous Environment Combat Unit|military" and "Black Ops|trained assassins", referred to as "a dangerous and very efficient clean-up crew" are to enter the facility.''Half-Life Blue Shift'' instruction manual This suggests that Black Mesa has experienced problems with escaped specimens in the past and that a possible intervention from the HECU and the Black Ops is a known fact among the personnel, although some employees consider it a rumor.''Half-Life'' Possibly to deal with potential escaped specimens, or perhaps being a leftover from the facility's days as a military missile complex, Black Mesa contains many automated Black Mesa Ceiling Turret|ceiling turrets, which, when activated, will emerge from armored cupolas and fire upon any moving object in their line of sight.


{{Main|Black Mesa Personnel}}

Black Mesa employs in its facility two main groups of civilian employees a Black Mesa Science Team|science personnel and a Black Mesa Security Force|security personnel, along with various other inhabitants including administrative personnel, service personnel and occasionally the employees' families.

==The Black Mesa Incident==

{{main|Black Mesa Incident}}

Occurring on May 16|May 16, 200-,''Half-Life'' instruction manual the Black Mesa Incident is caused directly by a failed experiment in Sector C, triggering a Resonance Cascade. This leads to the invasion of the facility by Xen creatures and to severe damage, and finally its complete destruction by a Mark IV Thermonuclear Device|thermonuclear bomb.

FileIronic injury sign.jpg|thumb|right|200px|Ironic injury sign near a killed scientist in an early ''Half-Life'' screenshot.

The Black Mesa Research Facility, being a science research facility, presents numerous hazards to both health and safety. These can include

*Electrical hazards, from electrical apparatus and power systems;
*Burning / heat hazards, from steam pipes, furnaces or any other hot apparatus;
*Freezing hazards, from freezers and super coolants;
*Acid / corrosive hazards, from countless acid and alkali chemicals in all different applications;
*Radioactive hazards, from nuclear reactors and waste;
*Biohazards, from biological waste and residue;
*A risk of drowning in extremely deep water basins
*Being harmed / killed by underwater machinery
*A risk of fractures from falling, and / or machinery

Due to so many possible hazards being present in various applications all throughout Black Mesa, precautions must be taken. Certain areas call for the use of safety equipment, others will only allow entry when wearing an HEV Suit, a clean suit or an Armor Vest and Helmet|armor vest and helmet. This point is backed up by security guards stationed at 'secure access' doors being instructed to only permit access if the entrant is wearing proper equipment.

Black Mesa also features an enormous supply of medical facilities and equipment. There are wall-mounted first aid stations, supplies of portable first aid satchels and infirmary areas. Many scientists are also trained in first aid and they carry syringes that contain healing materials when someone need medical attention.


The various Black Mesa facilities are loosely grouped into seven Sectors (although many areas visited during the games have no known Sector; it is actually unknown if every single area has to belong to a Sector), as well as various Areas and Levels, all linked together by the Black Mesa Transit System or Sector E Materials Transport. Each sector has a letter ranging from A to G, and bears the name of its main facility. Thus Sector E Biodome Complex does not have only alien study labs, and Sector D Administration does not have only administrative offices.

The details about all the Black Mesa area names are given in signs found within the maps, character dialogs, Black Mesa Announcement System announcements and the games' instruction manuals. However many announcements are never heard in-game, only to be found in the file "sentences.txt" located in each game's sound folder, showing that many more messages were originally to be heard during the games. Each sentence has a map name before it, allowing a clear identification of the related area.

As many names and details appear in the Gearbox expansions, it is unknown exactly what the Gearbox team came up with, and what was handed to them by Valve. Regardless, the facility was created more to serve gameplay than to be a consistent facility with all sectors and areas fitting perfectly together (this is far from being the case). 

===Main Sectors===

====Sector A Training Facility====

FileT0a00006.jpg|thumb|left|200px|The Holographic Assistant demonstrating a duck jump in the Training Facility.

{{Main|Sector A Training Facility}}

Encountered in all four of the ''Half-Life'' games, Sector A contains the separate Hazard Courses used for training scientists''Half-Life'' (predominantly to the use of the HEV Suit) and security guards.

The Map name is "Hazard Course"

====Sector B Coolant Reserve====

FileSector b lower canal.jpg|thumb|right|200px|Sector B's Lower Canal.

{{Main|Sector B Coolant Reserve}}

The Coolant Reserve apparently stores the industrial coolant used to maintain Black Mesa's thousands of computers and machines. It is first seen by Gordon Freeman when he escapes from Sector C. 


====Sector C Test Labs====

FileTest chamber.jpg|thumb|left|200px|The Anti-Mass Spectrometer in Sector C.

{{Main|Sector C Test Labs}}

Sector C is notable primarily for housing the Anomalous Materials Laboratories, Gordon Freeman's workplace. This area contains the Anti-Mass Spectrometer (in Test Lab C-33/a), the initial source of the Black Mesa Incident, the starting point of the ''Half-Life'' series.


====Sector D Administration====

FileHL BMRF OfficeComplex.jpg|thumb|right|200px|Sector D following during the Black Mesa Incident.

{{Main|Sector D Administration}}

Seen early in ''Half-Life'', Sector D is mainly a large underground complex of Administration Offices where the bureaucratic aspects of Black Mesa's upkeep take place, along with some limited research. It also contains some limited cafeteria facilities, as well as a very large walk-in freezer.


====Sector E Biodome Complex====

FileHL BMRF Biodome observation area.jpg|thumb|left|200px|An underground habitat for Xen specimens in Sector E.

{{Main|Sector E Biodome Complex}}

The Sector takes its name from the Biodome Complex, a relatively recent area of the facility, containing a series of Specimen Observation Areas, where captured Xen CategoryXen creatures|aliens and CategoryXen flora and minerals|flora are kept and observed in artificial recreations of their natural habitats. Sector E also features the large Sector E Biodome Complex Transport|Sector E Materials Transport, Black Mesa's freight monorail, the Sector E Biodome Complex Altitude Launch Center|High Altitude Launch Center, where rockets are launched, as well as a large Sector E Biodome Complex Storage Facility|Ordinance Storage Facility where the Mark IV Thermonuclear Device is set up and Gene Worm teleports in.


====Sector F Lambda Complex====

FileLambdaTeleportationSystem.jpg|thumb|right|200px|The Lambda Reactor Core in the Lambda Complex.

{{Main|Sector F Lambda Complex}}

The heavily fortified Lambda Reactor Complex is the site of Black Mesa's top secret teleportation labs. It features a huge reactor consisting of the Lambda Reactor Coolant System, and the cylindrical Lambda Reactor Core, as well as a large teleport.


====Sector G Hydro Electric====

FileBlack Mesa dam.jpg|thumb|left|200px|The Hydro-Electric Dam.

{{Main|Sector G Hydro Electric}}

Sector G mostly provides the power for the facility. It features the Topside Hydro Plant and its iconic Hydro-Electric Dam, and the Drainage Canals.


===Other areas===

The following areas are either not linked to a specific sector, or their specific sector is unknown.


====Advanced Biological Research Lab====

FileBio lab outside.jpg|thumb|right|200px|The Advanced Biological Research Lab building viewed from the outside.

{{Main|Advanced Biological Research Lab}}

Located near Sector G's Hydro-Electric Dam and partially above the Biological Waste Processing Plant, the Advanced Biological Research Lab covers the ''Half-Life'' chapter ''Questionable Ethics''. This is where the Tau Cannon is found.


====Alien Quarantine Labs====

FileDy lasers0037.jpg|thumb|left|200px|The laser consoles.

{{Main|Alien Quarantine Labs}}

Located under the Gamma Labs, aliens brought with the Displacement Beacon Focus Emitter are studied there. Cross and Green are sent there by Keller to turn on a beam matrix to power the Displacement Beacon Focus Emitter on the surface.''Half-Life Decay''


====Area 2 Administration Offices====

{{See|Sector B Coolant Reserve 2 Administration Offices}}


====Area 3 Medium Security Facilities====

{{See|Sector C Test Labs 3 Medium Security Facilities and High-Energy Particle Labs}}


====Area 4 Personnel Dormitories====

{{See|Sector A Training Facility 4 Personnel Dormitories}}


====Area 7 Recreational Facilities====

Whilst not seen in the game, a FileTram map 01.png|Black Mesa Transit System map featured in ''Blue Shift'' mentions Area 7. As Black Mesa's employees are required to live in the facility itself, Area 7 may contains comforts and diversions such as sporting areas, cafeterias, a cinema, shops and other personnel facilities. It is connected to the Green Line of the Black Mesa Transit System.FileTram map 01.png|Black Mesa Transit System map


====Area 8 Topside Dormitories====

FileTopside dorms.jpg|thumb|right|200px|Area 8 Topside Dormitories and the Transit System track passing through it.

{{Main|Area 8 Topside Dormitories}}

Located within Sector B Coolant Reserve, on both parts of the Sector B Line of the Black Mesa Transit System, this area consists of outdoor dormitories where Barney Calhoun is accommodated while working at Black Mesa.


====Area 9====

Features Area 9 Central Transit Hub, Area 9 Security Checkpoint, and parts of Sector B Line.

=====Area 9 Central Transit Hub=====

{{See|Black Mesa Transit System 9 Central Transit Hub}}

=====Area 9 Security Checkpoint=====

{{See|Sector B Coolant Reserve 9 Security Checkpoint}}


====Biological Waste Processing Plant====

FileC2a40001.jpg|thumb|left|200px|The plant as first seen by Gordon Freeman.

{{Main|Biological Waste Processing Plant}}

Visited during the ''Half-Life'' chapter ''Residue Processing'', the Biological Waste Processing Plant disposes of and processes Black Mesa's wastes through large tanks and an endless conveyor belt network.''Half-Life''


====Black Mesa Air Control====

FileDy signal055000.jpg|thumb|right|200px|Osprey on an airstrip of the Air Control.

{{Main|Black Mesa Air Control}}

This building is adjacent a large airstrip, and is used to monitor and direct activity in the airspace above Black Mesa.''Half-Life Decay''


====Black Mesa desert====

FileCliffs HECU.jpg|thumb|left|200px|View of the canyon from the cliff where a HECU soldier is waiting for Freeman.

{{Main|Black Mesa desert}}

This desert area includes several sandy areas with Land Mines, cacti and rocks, as well as several small HECU camps. There Freeman is chased by the AH-64 Apache that started attacking him at the dam, and finally defeats it when first finding the HECU RPG|RPG along a steep cliff in front of a large mesa valley, at the climax of the chapter ''Surface Tension''. 


====Black Mesa South Access====

FileSouth Access Tunnel.jpg|thumb|right|200px|Outside the South Access Tunnel.

{{Main|Black Mesa South Access}}

One of the several known entrances to Black Mesa, it links it to the outside by a 5-mile tunnel. At its outside end Calhoun, Rosenberg, Bennet and Simmons reunite after teleporting.


====Black Mesa Transit System====

FileTram map 01.png|200px|Black Mesa Transit System map.|left|thumb

{{Main|Black Mesa Transit System}}

This is the extensive monorail network linking the many different Black Mesa Sectors, provided for the security and convenience of the Black Mesa personnel.


====East Personnel Entrance====

{{See|Sector B Coolant Reserve Personnel Entrance}}


====Freight Yard====

FileBa yard50000.jpg|thumb|right|200px|Freight cars in the HECU-occupied Freight Yard.

{{Main|Freight Yard}}

A topside area of the Black Mesa Research Facility, it is connected to the New Mexico Railroad Line and used to ship freight in and out of the facility.


====Gamma Labs====

FileDy fubar0010.jpg|thumb|left|200px|The powered Displacement Beacon Focus Emitter with its three crystals deployed.

{{Main|Gamma Labs}}

This facility was originally used "as a sort of cross-dimensional netting ground", where organic alien samples and creatures were captured from Xen without the need of actually going there, with the Displacement Beacon Focus Emitter located in the nearby canyon.''Half-Life Decay''


====High Altitude Launch Center====

{{See|Sector E Biodome Complex Altitude Launch Center}}


====High-Energy Particle Labs====

{{See|Sector C Test Labs 3 Medium Security Facilities and High-Energy Particle Labs}}



{{See|Black Mesa Medical Lab}}


====Level 1 Main Facility Entrance====

Never physically seen within any of the ''Half-Life'' games and only seen on a FileTram map 01.png|Black Mesa Transit System map featured in ''Blue Shift'', the name of that area heavily implies that it is used as a central entrance checkpoint for all the facility personnel, and that it may be ''the'' entrance to Black Mesa. It is connected to the Green Line of the Black Mesa Transit System.


====Level 3====

As heard during Freeman's tram ride from Level 3 Dormitories on the day of the Black Mesa Incident, the Black Mesa Hazard Course Decathlon was to start on Level 3 around 1900. This never happened due to the incident.''Half-Life''

=====Level 3 Dormitories=====

FileDy dorms0027.jpg|thumb|right|200px|The swimming pool in the Level 3 Dormitories.

{{Main|Level 3 Dormitories}}

Located within Sector C Test Labs, along the Sector C Line of the Black Mesa Transit System, this area is one of the only two personnel dormitories seen or mentioned during the games, the other being Area 8 Topside Dormitories. This is where Gordon Freeman lives while working at Black Mesa, and where Gina Cross and Colette Green search for a security guard who would have the clearance codes to lift the military air traffic lockdown.


====Medical Lab====

FileWelcome to Black Mesa.jpg|thumb|left|200px|A Zombie grunt in the Infirmary.

{{Main|Black Mesa Medical Lab}}

After his Osprey is taken down by Alien Aircrafts, Adrian Shephard wakes up in a damaged Black Mesa infirmary, in an area that appears to still be under the control of Black Mesa personnel, who are caring for wounded HECU soldiers and studying Standard Headcrab|Headcrabs.''Half-Life Opposing Force''


====Ordinance Storage Facility====

{{See|Ordinance Storage Facility (disambiguation)}}
{{See|Sector E Biodome Complex Storage Facility}}


====Satellite Communications Center====

{{See|Sector A Training Facility Communications Center}}


====Sector E Materials Transport====

{{See|Sector E Biodome Complex E Materials Transport}}


====Section A-17 Prototype Labs====

FileRosenberg is pleased.jpg|thumb|right|200px|Rosenberg near the teleport in the Prototype Labs.

{{Main|Section A-17 Prototype Labs}}

A very old sector of Black Mesa, these labs are located below the Freight Yard. There Black Mesa's first teleportation experiments took place.  


====Silo D====

{{See|Sector D Administration D}}


====Topside Motorpool====

FileBMRF helipad Osprey.jpg|thumb|left|200px|HECU troops being unloaded by a V-22 Osprey.

{{Main|Topside Motorpool}}

First seen in the ''Half-Life'' chapter ''Surface Tension'', this area features the bulk of Black Mesa's still-functional military facilities, as well as maintenance and storage areas for the Black Mesa SUVs.''Half-Life'' 


====Waste Processing Area 3====

FilePit worm rising.jpg|thumb|right|200px|The Pit Worm in Waste Processing Area 3.

{{Main|Waste Processing Area 3}}

In a surface section of Waste Processing Area 3 can be found a Tactical Map originally manned by Cooper, a now dead HECU soldier, and used by Gordon Freeman to defeat the chasing Gargantua and clear the way ahead, leading to the ''Half-Life.html">Sector F.''Half-Life'' Another part of Waste Processing Area 3 connected to Sector E Biodome Complex is seen in ''Opposing Force''. This is where the Pit Worm is found.


==Behind the scenes==
FileRtb laidlaw note.jpg|200px|right|thumb|Marc Laidlaw's brainstorm note from ''Raising the Bar''.

*Series' writer Marc Laidlaw coined the name "Black Mesa Research Facility". He came up with several names during his brainstorming, apparently all based on actual locations. He states it is great fun for Valve to invent names for their creations, and then see them go out into the world and take on lives of their own. He also humorously states he is very glad he decided to go with "Black Mesa Research Facility" rather than "Black Butte", likely because of its similarity with the word "butt". These names, most of the time to be completed by the words "Research Facility", include

*"Black Butte Nuclear Missile Base", located in Montana instead of New Mexico. 113 summits in the United States are named "WikipediaBlack Butte|Black Butte".

*"Sand Basin". A "http// Black Sand Basin" can be found in WikipediaYellowstone National Park|Yellowstone National Park).

*"Diablo Mesa" / "Mesa Diablo". The http// Mesa Diablo Summit can be found in New Mexico.

*"Diablo Plains". The "Canyon Diablo Plains" are part of the WikipediaCanyon Diablo (canyon)|Canyon Diablo, located in Arizona.

*"Fertile Plains". Does not seem to exist.

*As for the name "Black Mesa", several can be found across the United States

*An WikipediaBlack Mesa (Oklahoma)|actual mesa that covers the states of Colorado, New Mexico and Oklahoma, and that got its name from the layer of black lava rock that coated it about 30 million years ago.http// http// on In Oklahoma, it is home to the http// Black Mesa State Park and the http// Black Mesa Nature Preserve. Black Mesa may be located there.

*The WikipediaBlack Mesa Test Range|Black Mesa Test Range, located in Utah, interestingly a rocket testing facility.

*WikipediaBlack Mesa, Arizona|Another Black Mesa can be found in Arizona.

*Ted Backman suggested Black Mesa areas that were not included in the final game, such as a large fuel depot stacked with barrels of oil that would have forced the player to use hand-to-hand combat instead of their weapons, with creatures coming from the opposite end of the room, and a morgue full of tanks containing dead alien specimens.

*According to Jay Stelly, all ''Half-Life'' maps were designed ahead of time on paper by a "Cabal" consisting of level builders, animators, programmers, and anyone else needed for their creation so the team ensured all the available technology was being used to its fullest potential throughout the game.

*''Half-Life Uplink'' features two instances of security cameras following the player, not seen in any other game set in Black Mesa. Shielded cameras were also suggested at some point in a "Detectomatic 2000" security checkpoint. This is featured in ''Opposing Force'', in the Santego Military Base.

*According to old ''Half-Life'' builds, the facility was also to feature a particle accelerator.

*As seen in the ''Half-Life'' texture files, offices were to feature more posters and photos, and not only a child picture in Gordon Freeman's locker, although they might have been left in the files only as Easter eggs never to be seen in-game. The images include several public domains images taken by Valve on the website http// Public Domain Images, existing as far as 1996http//*/http// Internet Archive Wayback Machine history for PD Images one of WikipediaBabe Ruth|Babe Ruth, one of a bald eagle, one of WikipediaThurgood Marshall|Thurgood Marshall, and a computer generated image of a carcinogen bound in DNA double helix put into a calendar; the FileBlue Marble calendar original.png|retail calendar using the "WikipediaThe Blue Marble|Blue Marble" photograph of Earth also coming from that website. The files also include a cropped version of a picture of WikipediaMartin Luther King, Jr.|Martin Luther King and WikipediaMalcolm X|Malcolm X smiling while shaking hands, one of what may be WikipediaJ. Robert Oppenheimer|J. Robert Oppenheimer, two of jet fighters, one of a windsurfer, one of the White House (used in the map "cs_office" in ''wccounterstrikeCounter-Strike|Counter-Strike''), three images of ''WikipediaXena Warrior Princess|Xena'' and finally images of Valve employees, such as a FileValve c. 1998 (PICTURE7).png|photo group of the whole ''Half-Life'' team (apparently on a baseball field, with Gabe Newell sitting in the middle), and probably Ted Backman and his girlfriend, probably current wife Vanessa Slough. Many of these pictures were heavily reused in CategoryGoldSrc mods|''Half-Life'' mods.

FileBlack mesa photo.png|right|thumb|The photo of a black mesa as seen on Kleiner's Lab cork board.

*As with Aperture Science, the Black Mesa Research Facility / Black Mesa logo is directly based on the company's name, appearing as a stylized WikipediaMesa|mesa mountain against the sky.

*The two different soda vending machines will deliver one can each time a button is pressed; each can gives one health point. As seen in the textures of the unique model using six different skins, the soda brands are "Dante" (a nod to Dante's hell (Inferno) in WikipediaDivine Comedy|The Divine Comedy)", "Glub", "Hai!", "http// Grope","Guthrie" (a nod to John Guthrie, who designed most of the Black Mesa maps), and "Yuck". The facility also features snack vending machines, but they cannot be used.

*The cork board hanged to the teleport room door in Kleiner's Lab features several schematics, newspaper clips, photos and sticky notes, among them the photography of a black mesa. This might be the mesa that gave its name to the facility.

*The Black Mesa Research Facility bears many similarities with real world scientific facilities such as the WikipediaLos Alamos National Laboratory|Los Alamos National Laboratory, WikipediaSandia National Laboratory|Sandia National Laboratory, the WikipediaArea 51|Area 51 or the WikipediaCERN|European Organization for Nuclear Research.

===Concept art===

FileBmrf no smoking.jpg|Fuel depot.
FileBmrf tanks.jpg|Morgue.
FileBmrf secu check point.jpg|"Detectomatic 2000" security checkpoint.
FileBmrf catwalk.jpg|Catwalk.

===Vending machines===

FileWeird sci.jpg|Two cut Coca-Cola and "Fruitopia" soda vending machines in an early ''Half-Life'' screenshot.
FileBlack mesa enjoy machine.jpg|The "Enjoy" soda vending machine introduced in ''Half-Life'', textured by Yatsze Mark.
FileBlack mesa soda pop machine.jpg|The "Soda Pop" soda vending machine introduced in ''Half-Life''.
FileBlack mesa cans.jpg|The different soda cans "Dante", "Glub", "Hai!", "Grope","Guthrie", and "Yuck".
FileBM food machine.jpg|Snack vending machine introduced in ''Half-Life''.
FileCarousel snacks.jpg|The "Carousel Snacks" snack vending machine introduced in ''Opposing Force''.

==List of appearances==

*''Half-Life Day One'' {{1st}}
*''Half-Life Uplink'' {{Nc}}
*''Half-Life Opposing Force''
*''Half-Life Blue Shift''
*''Half-Life Decay''
*''Half-Life 2'' {{Flash}} {{M}}
*''Half-Life 2 Raising the Bar''
*''Half-Life 2 Episode One'' {{Mo}}
*''Half-Life 2 Episode Two'' {{Flash}} {{M}}
*''Portal'' {{M}}
*''Portal 2'' {{M}}

{{Imagecat|Black Mesa Research Facility images}}

== External links ==
*http// Overview of Black Mesa – A composite map of the facility as seen in the original ''Half-Life''.
*http// A speculative 3D map of Black Mesa, including the expansions, with some gap-filling fanon

|title=''Half-Life'' story arc journey
|title=''Half-Life Blue Shift'' story arc journey
{{Black Mesa}}


deBlack Mesa Research Facility
esLaboratorios de Investigación Black Mesa
ruНаучно-исследовательский комплекс «Чёрная Меза»
CategoryBlack Mesa
CategoryBlack Mesa Research Facility locations
CategoryTed Backman designs
CategoryHalf-Life Opposing Force
CategoryHalf-Life Blue Shift
CategoryHalf-Life Decay
CategoryHalf-Life Uplink
CategoryHalf-Life 2 Raising the Bar

|description=The passenger monorail in the Black Mesa Transit System.
|other versions=
|cat artist=
|cat subject=CategorySector C Line images
|cat type=CategoryHalf-Life screenshots

|description=The Advanced Biological Research Lab lobby under HECU control.
|other versions=
|cat artist=
|cat subject=CategoryAdvanced Biological Research Lab imagesCategoryHECU imagesCategoryAmmunition imagesCategoryMP5 imagesCategoryHECU SPAS-12 imagesCategoryHEV Charger imagesCategoryPowered Combat Vest imagesCategoryRetinal scanner images
|cat type=CategoryHalf-Life screenshots

|description=The Sector C entrance hall.
|other versions=
|cat artist=
|cat subject=CategorySector C imagesCategoryBlack Mesa Science Team imagesCategoryBlack Mesa Security Force images
|cat type=CategoryHalf-Life screenshots

|description=A Headcrab and a dead Black Mesa Scientist|scientist in the Black Mesa Office Complex.
|other versions=
|cat artist=
|cat subject=CategorySector D imagesCategoryBlack Mesa Science Team imagesCategoryStandard Headcrab imagesCategoryVortigaunt images
|cat type=CategoryHalf-Life screenshots
|description=The freight monorail and Houndeyes in Sector E.
|other versions=
|cat artist=
|cat subject=CategorySector E Materials Transport imagesCategoryHoundeye images
|cat type=CategoryHalf-Life screenshots

|description=An underground habitat for Xen specimens in the Biodome Complex at Black Mesa.
|source=''Half-Life Opposing Force''
|other versions=
|cat artist=
|cat subject=CategoryBiodome Complex imagesCategoryXen Healing Pool imagesCategoryXen Tree imagesCategoryBullsquid imagesCategoryHoundeye imagesCategoryLight Stalk images
|cat type=CategoryHalf-Life Opposing Force screenshots