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 thrice-widowed patriarch Ben Cartwright (Lorne Greene). He had three sons, each by a different wife: the eldest was the urbane architect Adam Cartwright (Pernell Roberts) who built the ranch house; the second was the warm and lovable giant Eric "Hoss" Cartwright (Dan Blocker); and the youngest was the hotheaded and impetuous Joseph or "Little Joe" (Michael Landon). Via exposition (S01:E01 – "Rose for Lotta") and flashback episodes, each wife was accorded a different ancestry: English (S02:E65 – "Elizabeth My Love"), Swedish (S03:E95 – "Inger My Love") and French Creole (S04:E120 – "Marie My Love") respectively. The family's cook was the