Black Rock Desert

Black Rock Desert
Desert
The desert's 1,000 sq mi (2,600 km^2) encompasses several areas: 492 sq mi (1,270 km^2) wilderness (NE),[1] 200 sq mi (520 km^2) playa (SW), 100 sq mi (260 km^2) between playa & wilderness, 100 sq mi (260 km^2) N central branch and 100 sq mi (260 km^2) perimeter (canyons etc.)
Name origin: "The Black Rock" near a spring
Country	United States
State	Nevada
County	Humboldt, Pershing, Washoe
Part of	Great Basin section
Nearest city	Gerlach, Nevada
River	Quinn River
Location	Quinn River Sink
- elevation	3,907 ft (1,191 m) [2]
- coordinates	40°52′59″N 119°03′50″W / 40.88306°N 119.06389°WCoordinates: 40°52′59″N 119°03′50″W / 40.88306°N 119.06389°W
Length	100 mi (161 km) [3]
Area	1,000 sq mi (2,590 km^2) [4]
Biome	Lahontan Playa ecoregion and Salt Shrub Basin ecoregion[5]
Public use	Federal lands: restrictions, Private lands: some grant permission
Easiest access	State Route 447
Timezone	Pacific (UTC-8)
- summer (DST)	PDT (UTC-7)
GNIS ID	863276 [6]

The Black Rock Desert is a semi-arid region (in the Great Basin shrub steppe eco-region), of lava beds and playa, or alkali flats, situated in the Black Rock Desert-High Rock Canyon Emigrant Trails National Conservation Area, a silt playa 100 miles (160 km) north of Reno that encompasses more than 300,000 acres (120,000 ha) of land and contains more than 120 miles (200 km) of historic trails. It is in the northern Nevada section of the Great Basin with a lakebed that is a dry remnant of Pleistocene Lake Lahontan. The average annual precipitation (years 1971-2000) at Gerlach (extreme south-west of the desert) is 7.90 inches (200 mm).^[7] The Great Basin, named for the geography in which water is unable to flow out and remains in the basin, is a rugged land serrated by hundreds of mountain ranges, dried by wind and sun, with spectacular skies and scenic landscapes.^[8] The region is notable for its paleogeologic features, as an area of 19th-century Emigrant Trails to California, as a venue for rocketry, and as an alternative to the Bonneville Salt Flats in northwestern Utah, for setting land speed records (Mach 1.02 in 1997). It is also the location for the annual Burning Man festival.

The Black Rock Desert is part of the National Conservation Area (NCA), a unit of the Bureau of Land Management (BLM) National Landscape Conservation System (NLCS). The NCA is located in northwest Nevada, and was established by legislation in 2000. It is a unique combination of desert playa, narrow canyons, and mountainous areas.

Humans have been in Black Rock Desert since approximately 11,000 BC. In 1300 BC the area was settled by the Paiute people. The large black rock formation was used as a landmark by the Paiute and later emigrants crossing the area. The landmark is a conical outcrop composed of interbedded Permian marine limestone and volcanic rocks.^[9] At its base is a large hot spring and grassy meadow, which was an important place for those crossing the desert headed for California and Oregon. In 1843, John Fremont and his party were the first white men to cross the desert, and his trail was used by over half the 22,000 gold seekers headed to California after 1849. In 1867, Hardin City, a short-lived silver mill town was established (now a ghost town).

Geography

Black Rock Point^[10] with mirage

The Black Rock Desert region is in northwestern Nevada and the northwestern Great Basin. The playa extends for approximately 100 mi (160 km) northeast from the towns of Gerlach and Empire, between the Jackson Mountains to the east and the Calico Hills to the west.

The Black Rock Desert is separated into two arms by the Black Rock Range. It lies at an elevation of 3,907 ft (1,191 m)^[6] and has an area of about 1,000 sq mi (2,600 km²).^[4]

There are several possible definitions of the extent of the Black Rock Desert. Often people refer just to the playa surface. Sometimes terrain which can be seen from the playa is included. The widest definition of the Black Rock Desert region is the watershed of the basin that drains into the playa. The intermittent Quinn River is the largest river in the region, starting in the Santa Rosa Range and ending in the Quinn River Sink on the playa south of the Black Rock Range. The watershed covers 11,600 sq mi (30,000 km²)^[11] including the Upper and Lower Quinn River, Smoke Creek Desert, Massacre Lake, and Thousand Creek^[12]/Virgin Valley^[13] watersheds of northwestern Nevada as well as small parts across the borders of California and Oregon.

If the playa is wet for a month or so, the shallow waters teem with fairy shrimp, or anostraca born of eggs that lay dormant in the silt crust for long periods of time - sometimes for many years. The edges of the playa and the Quinn River Sink stay wet longer than the rest of the playa, which concentrates the fairy shrimp and migratory birds in those areas. More than 250 species of neo-tropical birds and many other water birds stop in Black Rock-High Rock Country for varying lengths of time. When wet, especially in spring, the playa is a favorite place for these winged visitors to rest and feed.^[8]

When it rains, the playa can become extremely sticky, bogging down four-wheel-drive vehicles. Some areas of the Black Rock are environmentally sensitive and closed to all vehicles.

Humboldt, Pershing and Washoe Counties of Nevada intersect at the Black Rock Desert.

Mountain ranges

The following mountain ranges are within or bordering the Black Rock Desert region.

Calico Hills, Humboldt County, Nevada

• Antelope Range^[14]
• Badger Mountains^[15]
• Black Rock Range^[16]
• Calico Hills^[17]
• Division Range^[18]
• Fox Range^[19]
• Granite Range^[20]
• Hannan Range^[21]
• High Rock Canyon Hills^[22]
• Hog Ranch Mountains^[23]
• Jackson Mountains^[24]
• Kamma Mountains^[25]
• Little High Rock Mountains^[26]
• Massacre Range^[27]
• Montana Mountains^[28]
• Pine Forest Range^[29]
• Poker Brown Mountains^[30]
• Selenite Range^[31]
• Sentinel Hills^[32]
• Seven Troughs Range^[33]
• Sheephead Mountains^[34]
• Smoke Creek Mountains^[35]
• Yellow Hills^[36]

Geologic features

The desert has numerous volcanic and geothermal features of the northwest Nevada volcanic region, including two Black Rock Points (west and east) at the southern end of the Black Rock Range and which have dark Permian volcanic rocks similar to another Permian black diabase dike formation in Nevada.^[37]

The portion of the Lake Lahontan lakebed in the Black Rock Desert is generally flat with Lahontan salt shrub vegetation, widely scattered hot springs, and a playa. In areas of the lakebed along mountains, rain shadow results in desert precipitation levels.

The continuous Fly Geyser of Fly Ranch is on private land and began in 1916^[38] when water well drilling accidentally penetrated a geothermal source.^[39]

The playa of the Black Rock Desert lakebed is ~200 sq mi (520 km²) within an area bounded by the Calico Mountains Wilderness (north), Gerlach (west), the Applegate National Historic Trail (northeast), and the Union Pacific Railroad (south).^[40] The "South Playa" (~30 sq mi, with ~13 sq mi (34 km²) in Washoe Co) is between Gerlach and the southwest boundary of the National Conservation Area (NCA),^[40] while the northeast NCA portion of the playa (including ~25 sq mi (65 km²) in Humboldt Co) is between the NCA boundary and the Applegate National Historic Trail.^[40] A Nobles route between Gerlach and Black Rock Hot Springs extends through the length of the playa.^[40] The playa's Quinn River Sink of ~3 sq mi (7.8 km²) is where the Quinn River discharges/evaporates ~2.75 miles (4.43 km) south-southwest of Black Rock Hot Springs.^[1]

Mining

Prospecting and mining has occurred in the Black Rock region since the mid-19th century. US Gypsum Corporation operated a gypsum mine and drywall (brand named Sheetrock) manufacturing plant in Empire, which employed 107 people and produced 266,300 tons of gypsum in 2008.^[41][42]

Allied Nevada Gold Corporation re-opened the Hycroft Gold Mine in 2008 after acquiring it from Vista Gold Corp. Hycroft is a strip-mining operation in the Kamma Mountains near Sulphur on the east side of the Black Rock Desert.^[41][43][44] An opal mine is in the base of the Calico Hills on the west side of the desert.^[45]

Paleontology

Bones of the mammoths that roamed the area around 20,000 BC have been recovered.^[46] In 1979 a fossilized Columbian Mammoth was found.^[47][48] Copies of the bones are now exhibited at the Nevada State Museum, Carson City.

Land speed records

The flatness of the Black Rock Desert's lakebed surface has led to the area's use as a proving ground for experimental land vehicles. It was the site of two successful attempts on the World Land Speed Record:

• In 1983, Richard Noble drove the jet-powered Thrust2 car to a new record of 634.015 mph (1,020.348 km/h). Noble also headed up the team that beat the Thrust 2 record.^[49]
• In 1997, ThrustSSC became the world's first, and so far, the only supersonic car, reaching 763.035 mph (1,227.986 km/h).^[50][51]

CSXT Space Shot, May 17, 2004

Rocketry records and attempts

In addition to the flat surface, distance from populated areas and uncontrolled airspace over the area also attract experimentation with rockets. The following are highlights of amateur rocketry records^[52] set at Black Rock:

• On November 23, 1996, the Reaction Research Society launched a rocket to 50 miles (80 km) in altitude, a significant leap in amateur rocket altitude records at the time.^[52][53]
• On May 17, 2004, the Civilian Space eXploration Team (CSXT) launched a rocket to 72 miles (116 km) in altitude, which was the first amateur rocket to exceed the 62.14-mile (100.00 km) Karman Line required to claim a space flight.^[54][55]

Other rocket launches attempting various altitude records or space flights have occurred at Black Rock. In May 1999, JP Aerospace used a rockoon (balloon-launched rocket) in an unsuccessful suborbital space flight attempt covered by CNN. The rocket reached 75,000 feet (23,000 m), which was far less than the intended Karman Line to reach space.^[56] CSXT made unsuccessful space launch attempts in 2000 and 2002 before the successful 2004 space flight.^[57][58] JP Aerospace returned to the desert in 2009, launching an armchair to the edge of space for Space Chair, an advertisement for Toshiba electronic products.^[59] On September 21, 2013, the University of Southern California's Rocket Propulsion Laboratory (USCRPL) launched its first space shot attempt, Traveler, intended to achieve a max altitude of 75 miles (121 km). The rocket experienced a catastrophic failure 3.5 seconds into flight at an altitude of approximately 10,000 feet (3,000 m). If successful, Traveler would have been the first university/student designed and built rocket to exceed the 62.14-mile (100.00 km) Karman Line required to claim a space flight. RPL's second attempt, Traveler II, flew in May 2014. It also failed catastrophically, approximately one second into the flight.^{[60][61][62][63]}

History

1914 WPRR map with Gerlach, Ascalon, Trego, Cholona, Ronda, and Sulphur, Nevada

More than ~15,000 years ago (15 tya), the Humboldt River flowed to the Smoke Creek-Black Rock Desert sub-basin, and during the recession of Lake Lahontan, the river diverted to the Carson Desert sub-basin.^[64] During the highest Lahontan water level (~12.7 tya), the lakebed was under about 500 ft (150 m) of water,^[65][66] under which sediment accumulated to form a flat lakebed.

Great Basin tribes inhabited the area 7.0 tya, and a Frémont Expedition encountered the site in 1843, but the Fortieth Parallel Survey (1867) conducted the first official exploration.^[67] In the late 1840s, Peter Lassen led California Trail emigrants through the desert's Applegate-Lassen Cutoff, an arduous route that took them hundreds of miles away from the gold lands of California. By 1910, Western Pacific's Feather River Route (Oakland-Salt Lake City) had been completed across the east side of the lakebed on the "general route first explored by Lieutenant E.G. Beckwith in 1854".^[68] By 1927, the desert had been used for filming The Winning of Barbara Worth (the 2003 Mythbusters pilot episode was also filmed in the area).

In World War II, 973 sq mi (2,520 km²) of the Black Rock Desert was used for a USAAF aerial gunnery training range, and post-war, the north region of the United States Navy's Lovelock Aerial Gunnery Range was in the Black Rock Desert area^[69] (the Black Rock Desert Gunnery Range had closed by 1964).^[70] In 1979, a fossilized Columbian Mammoth was found along the side of the lakebed.^[71]

The first "Balls" rocket event was held at the desert in 1993,^[72] and in 1998, the first annual Gerlach Dash glider race from Reno to the desert was held.^[73] For its 30th anniversary, the Black Rock Press published a 1994 book of desert photographs.^[74] The Friends of the Black Rock/High Rock organized in 1999,^[75] and a National Conservation Area Act the next year created several protected areas of the desert.^[1]:a Also in 2000, Lisa O'Shea died seven days after being scalded in Double Hot Springs when she attempted to rescue two dogs,^[76] and the Bureau of Land Management subsequently fenced "Double Hot".^[1]

21st century

Jack Lee Harelson was fined $2.5 million in 2002 for archeological looting of Elephant Mountain Cave, and in 2008, an injured man was rescued when an aircraft pilot radioed for help after noticing him lying face-down on the lakebed.^[77] In 2010, the Bureau of Land Management (BLM) Winnemucca District Office completed a roundup of 1,922 wild horses in the Calico Mountains Complex, of which 39 died of malnutrition due to overgrazing.^[1]:c It is currently the location for the annual Burning Man festival.

Transportation

Lakebed during 2006 rocket launch

Nevada State Route 447 is the area's main highway and connects Gerlach to SR 427 at Wadsworth, Nevada, near Interstate 80.^[78] The desert's dirt roads are generally not usable in wet or snowy conditions. Old Highway 34 provides access to the playa on the west side and to the Hualapai Flat. Old Highway 48 (dirt) connects the playa to Lovelock, and Old Highway 49 (Jungo Road, dirt) provides access to the lakebed from the Sulphur and Jungo ghost towns.^[79]

The Feather River Route uses the lakebed's east side between Sulphur and Gerlach. Light aircraft have landed on the lakebed for events (the nearby Empire and Reno-Tahoe International Airports provide commercial service for the area).

References

1. Bureau of Land Management. "DOI: BLM: National Home Page". BLM.gov. Retrieved 2010-05-13.

   a. "Black Rock Desert Wilderness Area" (pdf). Retrieved 2010-05-17. 314,829 Acres

   b. "Black Rock Desert–High Rock Canyon Emigrant Trails National Conservation Area Act of 2000" (pdf). 2001-11-06. Retrieved 2010-05-14.

   c. Thompson, Jamie (2004-12-16). "Hot Springs on Public Lands". BLM News. Winnemucca Field Office. Retrieved 2010-05-28.

   d. Ross, Lisa (2010-02-05). "BLM Concludes Calico Wild Horse Gather". News Release No. 2010-11. Winnemucca District Office. Retrieved 2010-05-14.

   e. "Rock Collecting". Winnemucca Field Office. 2008-03-18. Retrieved 2010-05-15.

   f. "Desert Survival Tips". 2007-04-27. Retrieved 2008-01-08.

   g. "Black Rock Desert-High Rock Canyon Emigrant Trails National Conservation Area". Retrieved 2014-11-08.

2. "USGS Elevation Web Service Query". United States Geological Survey. Retrieved 2010-05-19. 3908 ft (Quinn River Sink)
3. Evanoff, John C. (August 2005). "The Black Rock Desert: An Extraordinary Playa". VisitReno.com. Retrieved 2010-05-12.
4. Wright, John W. (ed.); et al. (2007) [2006]. The New York Times Almanac. New York, New York: Penguin Books. p. 456. ISBN 0-14-303820-6.
5. Bryce, S.A; et. al. "Ecoregions of Nevada" (poster). Reston, Virginia: USGS.
6. "Query Form For The United States And Its Territories". U.S. Board on Geographic Names. Retrieved 2010-05-13.

   a,b. "Black Rock Desert (863276)". Geographic Names Information System. United States Geological Survey. Retrieved 2010-01-18., Black Rock Point (838881), Big Mountain (Pahute Peak, 838751)

   c. Wilderness areas: Black Rock Desert (2035060), Calico Mountains (2035079), East Fork High Rock Canyon (2035112), High Rock Canyon (2035154), High Rock Lake (2035155), Little High Rock Canyon (2035182), North Black Rock Range (2035228), North Jackson Mountains (2035230), Pahute Peak (2035240), South Jackson Mountains (2035306)

7. "Climate Normals". Ggweather.com. Retrieved 2014-08-27.
8. http://blackrockdesert.org/friends/general-information
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14. "Antelope Range". Geographic Names Information System. United States Geological Survey.
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21. "Hannan Range". Geographic Names Information System. United States Geological Survey.
22. "High Rock Canyon Hills". Geographic Names Information System. United States Geological Survey.
23. "Hog Ranch Mountains". Geographic Names Information System. United States Geological Survey.
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25. "Kamma Mountains". Geographic Names Information System. United States Geological Survey.
26. "Little High Rock Mountains". Geographic Names Information System. United States Geological Survey.
27. "Massacre Range". Geographic Names Information System. United States Geological Survey.
28. "Montana Mountains". Geographic Names Information System. United States Geological Survey.
29. "Pine Forest Range". Geographic Names Information System. United States Geological Survey.
30. "Poker Brown Mountains". Geographic Names Information System. United States Geological Survey.
31. "Selenite Range". Geographic Names Information System. United States Geological Survey.
32. "Sentinel Hills". Geographic Names Information System. United States Geological Survey.
33. "Seven Troughs Range". Geographic Names Information System. United States Geological Survey.
34. "Sheephead Mountains". Geographic Names Information System. United States Geological Survey.
35. "Smoke Creek Mountains". Geographic Names Information System. United States Geological Survey.
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37. Wyld, Sandra J; et. al (2007). "Identification of a Distinct Terrane in the Cordiller...". University of Georgia. Retrieved 2010-05-13.
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40. "Reference Map" (gif). Resource Management Plan (Bureau of Land Management). Retrieved May 2010.
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42. "U. S. Gypsum Empire mine (Selenite quarry), Gerlach District, Pershing Co., Nevada, USA". mindat.org.
43. Allied Nevada Gold Corporation (2009-05-15). "Hycroft Mine Technical Report" (pdf). Retrieved 2010-01-16.
44. Mine Development Associates (January 2006). "Technical Report, Vista Gold Corp, Hycroft Mine" (PDF). Archived from the original (pdf) on 2007-07-04. Retrieved 2007-03-25.
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48. "The Pleistocene Nevada Exhibit". Nevada Department of Cultural Affairs. Retrieved 2010-04-18.
49. Ackroyd, John (2007). Jet Blast and the Hand of Fate. Redline books. ISBN 0-9544357-8-8.
50. Knapp, Don (1997-10-13). "Jet-powered car breaks sound barrier twice". CNN. Retrieved 2010-01-18.
51. "Supersonic car comes home". BBC. 1997-10-30. Retrieved 2010-01-18.
52. Lindsey, Clark. "HobbySpace.com - Advanced Rocketry: Records, Achievements & Competitions". Retrieved 2009-05-24.
53. "Video of the RRS 50 Mile Flight at Black Rock". Rocketry Planet. 1998-07-04. Retrieved 2009-05-24.
54. Deville, Derek. "GoFast Rocket Maximum Altitude Verification" (PDF) (Press release). Retrieved 2008-10-22.
55. Wade, Mark. "Astronautix - GoFast". Retrieved 2008-10-22.
56. Knapp, Don (1999-05-31). "Homebrew rocketeers race to be first in space". CNN. Retrieved 2010-02-25.
57. "CSXT 2000...So Close and Yet So Far". Civilian Space eXploration Team. 2000-09-29. Retrieved 2010-02-25.
58. "Disappointed But Looking To The Future: Motor Failure Prevents Civilian Rocket From Reaching Space". Civilian Space eXploration Team. 2002-09-21. Retrieved 2010-02-25.
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62. Silverman, Jason. "Traveler 1 Flight Report". Retrieved 2013-10-13.
63. Allie, Gehris. "Traveler II". Retrieved 2014-10-13.
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65. "History". Walker Lake Interpretive Association. Retrieved 2008-11-04.
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69. Loomis, David (1993). Combat zoning: military land-use planning in Nevada. University of Nevada Press. p. 17. ISBN 978-0-87417-187-7. Retrieved 2010-04-18.
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74. "About the Black Rock Press". 2007. Retrieved 2010-05-17.
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77. "Husky pilot helps rescue man dying in desert". Aircraft Owners and Pilots Association. 2008-07-31. Retrieved 2008-10-10.
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External links

• Media related to Black Rock Desert at Wikimedia Commons