"Desert Bighorn Sheep Weaver, R. A. 1972. Desert bighorn sheep in Death Valley National Monument and adjacent areas. State of California. The Resource Agency. Department of Fish and Game. Wildlife Management Administrative Report No. 72-4. "In 1891, Edward A. Nelson established the type locality and took the type specimen of the Nelson bighorn in the Grapevine Mountains. Both Wells and Hansen report that bighorns are very scarce in these mountains now; however, deer are common. This suggests a plant succession has taken place that favors deer. Old time wood cutters cutting timbers over for mines, fences, and perhaps charcoal, decimated much of this area which probably changed the plant succession." P 4, Table I 1972 estimate 1961 Est. (Wells) Grapevine Mtns Grapevine Mtns, general 10 30 Klare Spring 30 30 Deadman Spring 30 Corkscrew Spring 10 30 Hole in the rock Transient 3 Death Valley Buttes Transient 27 Subtotal 50 (over)"