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: Under Attack Bonanza: Under Attack Bonanza: Under Attack is a 1995 made-for-television film sequel to the 1959–1973 television series "Bonanza" and television films "" (1988) and "" (1993). The movie was directed by Mark Tinker and features noted character actors Ben Johnson, Jack Elam, Dennis Farina, and Richard Roundtree, as well as Leonard Nimoy and Dirk Blocker. None of the characters from the original series appears since the entire cast, with the exception of Pernell Roberts, had passed. The cast does include Michael Landon Jr. and Dirk Blocker, sons of the actors who originally starred as Little Joe and Hoss Cartwright. Nimoy