Ponderosa Ranch high in the Sierra Nevada, with a large ranch house in the center of it. Ben Cartwright was said to have built the original, smaller homestead after moving from New Orleans with his pregnant third wife Marie and his two sons, Adam and Hoss. The grown Adam, an architect/engineer, designed the later sprawling ranch house as depicted on TV ("Bonanza, The Philip Diedesheimer Story", Oct. 31, 1959, NBC-TV; "Bonanza: The Return", April 1993, NBC-TV). The fictional ranch was roughly a two-hour horse ride from Virginia City, Nevada. (Note: There are slight variations as to the origin of the Ponderosa Ranch,
Bonanza extreme pressure from other gang members. Coffee ends up showing the town that youth and a fast gun don't replace experience. Guy Williams was slated in 1964, the year that "Bonanza" hit #1 in the ratings, to replace Pernell Roberts upon Roberts' departure, enabling the series to preserve the four-Cartwright format for the run of the series. His character, Ben's nephew Will Cartwright, was introduced and was the lead character in five episodes, receiving "Starring" billing after the four original rotating Cartwrights during his second appearance going forward, but Roberts changed his mind later and decided to stay for one