Base Camp
Base Camp is rumored to be the back-up landing strip for Area 51.
This rumor is based on the orientation of the runway being similar to that of Groom Lake. Rather than perpetuate this rumor, consider two things:
First, the runway at Basecamp was built by the Atomic Energy Commission, which has nothing to do with the operating location near Groom Lake.
Second, runways are designed to be in the direction of prevailing winds, not aligned with unrelated runways far away.
Basecamp is located by highway 6 at roughly these coordinates: N38 18 47.2 W116 16 25.0 . From Area 51, take the ET highway towards route 6 (Warm Springs), then turn right until you see the Base Camp sign.
source: lazygranch.com