Bonanza is a statutory town located in Saguache County, Colorado, United States. The town population was 17 at the 2020 United States census. Formerly known as Bonanza City, Bonanza is a largely abandoned former silver mining town. Bonanza is a Spanish language word meaning prosperity.
Elevation: 9,479 ft (2,889 m)
Country: United States
State: Colorado
County: Saguache
Incorporated: 1881-01-13, as the · Town of Bonanza City