Where was the Ponderosa ranch in “Bonanza” (NBC, 1959-73)?

The Ponderosa ranch in “Bonanza” (NBC, 1959-73) was near Virginia City, Nevada.

The age order of the Cartwright sons from oldest to youngest were:

Adam (Pernell Roberts)
Eric “Hoss” (Dan Blocker)
Joseph “Little Joe” (Michael Landon)