Eureka Valley is located in Inyo County, in eastern California in the southwestern United States. It is approximately 28 miles long and up to 10 miles wide, with elevations varying from 2,870 feet up to 8,456 feet. The southern section of the valley is now part of the Death Valley National Park - Death Valley itself lies just to the southeast. To the north is Deep Springs Valley, Fish Lake Valley, and the White Mountain Range. To the east the Last Chance Range rises over 5,500 feet above the valley floor. To the west are the Saline Mountains, and to the southwest lies Saline Valley.
Eureka Valley is a graben, like most other lower-lying areas of the Basin and Range Province. An improved gravel road crosses the valley, connecting the community of Big Pine to the northern Grapevine section of Death Valley. A 10-mile gravel road provides access to the southern end of the valley.
Wikipedia https://en.wikipedia.org/wiki/Eureka_Valley_(Inyo_County)
More information http://www.nps.gov/deva/planyourvisit/eureka-dunes.htm
Address 93526, United States
Coordinates 37°5'44.757" N -117°40'31.284" E