I was a conservation desert patrol officer for many years in So. Nevada. The only location of Chuckar that I am aware of is on the S. and W. side of the Potosi range. There may be some N. of Cold Creek, but I have never personally seen them. NE of Gabbs, NV and N. of Austin, NV are hot spots for Chuckar, but my info is dated. Our Fish and Game bunch are always re-planting in out of the way places.
Chuckar were imported from India and Pakistan in the late 20's/early30's in exchange for some animal we had. I have forgotten what that was.