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Panamint Valley is a long basin located east of theArgus andSlate ranges, and west of thePanamint Range in the northeastern reach of theMojave Desert, in easternCalifornia,United States.

The northern end of the valley is inDeath Valley National Park andInyo County, California. The valley lies in a north–south direction, and stretches from the Panamint Dunes in the north to theNaval Air Weapons Station China Lake inSan Bernardino County in the south. The valley is approximately 65 miles (105 km) in length, and is more than 10 miles (16 km) wide in the Hall Canyon area.

The airspace over Panamint Valley is part of the U.S. military's vastR-2508 Special Use Airspace Complex.[5] The Panamint Military Operating Area (MOA) covers the entire valley north to Hunter Mountain from 200 ft AGL (Above Ground Level) up to FL180flight Level (flight level is approximately altitude above mean sea level in hundreds of feet), therefore, FL180 would be 18,000 feet) with an Air Traffic Control Assigned Airspace (ATCAA) located above the same area from FL180 up to FL600. The airspace is primarily used by military aircraft fromNellis AFB,Edwards AFB,NAWS China Lake, andNAS Lemoore for high and low altitude mission training. Military aircraft utilize radio communications on 291.6 MHz or 120.25 MHz while operating in the Panamint MOA; however, military aircraft throughout the R-2508 complex often use 315.9 MHz when conducting low altitude operations below 1500 ft above ground level.

36°03′33″N117°14′39″W / 36.05917°N 117.24417°W /36.05917; -117.24417