Eureka, Nevada lies 20 mi east nestled among mountain ranges.

The combined valleys form a broad basin about 30 kilometres (19 mi) in diameter.

Lone Mountain is about 3.5 miles (5.6 km) in diameter at its base and reaches an elevation of 7,936 feet (2,419 m) at its peak.

[4][5] Stream drainage from Antelope Wash and from a number of streams from the Roberts Mountains merge to the southwest of Lone Mountain to form Slough Creek which flows to the east to disappear in Hay Meadow just to the southeast of Lone Mountain making the combined valley an endorheic system.

Slough Creek re-emerges about 3 miles (4.8 km) to the east to continue through the narrow Devils Gate pass alongside highway 50.