Question: What mountain range is Area 51 located in?

Context paragraphs:
Breheimen: Breheimen is a mountain range in the Sogn og Fjordane and Oppland counties in Norway.  The area lies west of the Jotunheimen mountain range.  The mountain range lies to the northwest of the Sognefjellsvegen road, north of the Sognefjorden, south of the Nordfjorden and Norwegian National Road 15, and east of Norwegian National Road 5 and European route E39.  The mountain range includes Jostedalsbreen National Park and Breheimen National Park.

Pinal Mountains: The Pinal Mountains (Yavapai: Walkame) are a mountain range located in Gila County, Arizona.  They have a maximum elevation of 7,848 ft at Pinal Peak and a prominence of over 4,000 ft .  The closest city is the Globe, Arizona/Miami, Arizona area, which is just a few miles north of the mountain range.  The mountains are located within the Tonto National Forest, and their recreational facilities are maintained by the USDA's United States Forest Service.  The San Carlos Indian Reservation is very close to the mountain range, with its boundaries being just a few miles east/northeast of the range.  The mountains are covered with Ponderosa Pine and white fir and experience cooler weather than the Globe/Miami area, so that they are a popular recreation area in the summer.  The maintained facilities include a maintained dirt road that goes all the way to the summit of Pinal Peak, a campsite and recreational area, many hiking trails, as well as some radio towers near both Pinal and Signal peaks ( the two highest peaks of the range ).  The mountain range covers an area of 45,760 acres.

Area 51: The United States Air Force facility commonly known as Area 51 is a highly classified remote detachment of Edwards Air Force Base, within the Nevada Test and Training Range.  According to the Central Intelligence Agency (CIA), the correct names for the facility are Homey Airport (ICAO: KXTA) and Groom Lake, though the name "Area 51" was used in a CIA document from the Vietnam War.  The facility has also been referred to as "Dreamland" and "Paradise Ranch", among other nicknames.  The special use airspace around the field is referred to as Restricted Area 4808 North (R-4808N).

Ba Vì mountain range: The Ba Vì mountain range (tên nôm: Núi Ba Vì, tên chữ:Núi Tản Viên) is a soil-limestone mountain range in Vietnam.  It covers an area of about 50 km in Ba Vì, Lương Sơn and Kỳ Sơn districts.  The Ba Vì mountain range is called "the lord of mountains" ("núi chúa") in the Vietnamese spirit though it is not the highest mountain range in Vietnam.

Elkhead Mountains: The Elkhead Mountains are a mountain range in Colorado.  The mountain range is considered to be low altitude within Colorado as the mountains are under 11000 ft .  Located within Routt and Moffat counties, the mountain range is far from metropolitan areas and has few lakes and streams, so it attracts few visitors.  The mountain range is a volcanic range and all of the peaks were formed by volcanic action.  The mountain range extends approximately 16 mi east to west and 10 mi north to south, and its center is located at , approximately 20 mi northeast of Craig and north of Hayden, Colorado 13 mi south of the Wyoming border.  Almost all of the peaks within the Elkhead Mountains are a part of Routt National Forest.  Significant peaks are: Bears Ears, Sugar Loaf, Saddle Mountain, Black Mountain, Pilot Knob, and Meaden Peak.

Qaflankuh Mountain Range: Qaflankuh or Qaflankuh Mountain Range (Persian: رشته کوه‌ها‌ی قافلانکوه / Reshteh Kuh-hā-ye Qāflānkuh) is a mountain range that is located about 20 kilometres north of the city of Zanjan in Zanjan Province, Iran.  With an average width of almost 20 kilometres and a length of about 100 kilometres, this mountain range is stretched in a northwest-southeast direction, beginning from northwest of Zanjan, passing north of Zanjan and ending southeast of Zanjan.  The Qezel Owzan River flows in a valley that separates Qaflankuh Mountains on the south from Talish Mountains on the north.  With an elevation of 2971 metres, Mount Sendan Dagh is the highest mountain of the range which is located in the southeast section of this mountain range.  There are some mineral hot springs containing sulphur in different parts of this range.  Geologically, Qaflankuh Mountain Range was formed during the Tertiary volcanism and plutonism and is made mainly of the Eocene volcanic rocks with very small sections of intrusive rocks in the northern and southern parts of the range.

Bashagard Mountains: The Bashagard Mountains or the Bashagerd Mountains (also known as Bashagird or Bashakerd) is a mountain range that is located in southeast of Iran.  The mountain range runs in an arc almost in a northwest-southeast direction from eastern parts of Hormozgan Province along the border with Kerman Province and stretching into southern part of Sistan and Baluchestan Province.  With an elevation of 2185 metres, Mount Buniken (Kuh-e Buniken) is the highest point of the range located in the western section of the Bashagard Mountains, east of Sardasht in Bashagard County in Hormozgan Province, and in the vicinity of a place that marks the borders of Kerman, Hormozgan, and Sistan and Baluchestan provinces.  Made of ophiolite, an assemblage of mafic igneous rocks representing remnants of former oceanic crust, the mountain range was formed finally in the Miocene and the Pliocene during the Alpine orogeny.  The mountain range is located in a region with a hot semi-desert climate.

Chisos Mountains: The Chisos Mountains are a mountain range located in the Big Bend area of West Texas, United States.  The mountain range is contained entirely within the boundaries of Big Bend National Park.  This is the only mountain range in the United States to be fully contained within the boundary of a national park.  It is also the southernmost mountain range in the mainland United States.

Huallanca mountain range: The Huallanca mountain range (possibly from Quechua, "wallanka" mountain range; a cactus plant ("Opuntia subulata"); name of several localities and name of a mountain in the Wallanka range, also spelled "Huallanca"), Chawpi Hanka ("central ridge (or peak)", "Chaupi Janca, Chaupijanca") or Shikra Shikra ("sikra" woven basket, "many baskets", "Shicra Shicra") lies in the Andes of Peru.  It is located in the Ancash Region, Bolognesi Province.  The Wallanka mountain range is a small range southeast of the Cordillera Blanca and north of the Waywash mountain range extending between 9°52' and 10°03'S and 76°58' and 77°04'W for about 19 km in a northeasterly direction.

Groom Range: The Groom Range is a mountain range in Lincoln County, Nevada.  It is located within the Nevada Test and Training Range, north of Groom Dry Lake.  The highest point in the Groom Range is 9,249 feet.  The Groom Range is situated 26.6 miles north of the dry Groom Lake.

Supporting paragraphs: Groom Range Area 51
Answer: Groom Range