Sourdough is a class of yeast colony, dough and bread

Sourdough may also refer to:

People Forty-niner, California gold rush miners, nicknamed sourdoughs Sourdough (Yukon miner), Klondike gold rush miners Sourdough, a Yukoner, see List of adjectival and demonymic forms of place names

Persons Reuben D'Aigle (1874–1959; nicknamed "Sourdough"), Canadian prospector

Places Sourdough, Montana, USA; an unincorporated community in Sweet Grass County Sourdough Draw, South Dakota, USA; a draw (valley) Sourdough Island, Missoula County, Montana, USA; an island, see List of islands of Montana Sourdough Lake, Park County, Montana, USA; a lake, see List of lakes of Park County, Montana Sourdough Mountains, Washington State, USA; a mountain range Sourdough Mountain (Whatcom County, Washington), USA; a mountain Sourdough Peak, Wrangell Mountains, Alaska, USA; a mountain Sourdough Glacier, Wind River Range, Wyoming, USA; a glacier

Facilities and structures Sourdough Lodge, Richardson Highway, Alaska, USA; an NRHP-listed roadhouse Sourdough Inn, Fort Yukon, Alaska, USA; an NRHP-listed hotel The Sourdough Saloon, Beatty, Nevada, USA; a Western saloon Sourdough Campground, North Fork Smith River (California), USA; a campground Sourdough Alley, Red Mountain Resort, Rossland, West Kootenay, British Columbia, Canada; a trail Sourdough Hill, Meagher County, Montana, USA; a trail, see List of trails of Meagher County, Montana

Other uses Sourdough Air Transport, see List of defunct airlines of the United States (N–Z) Sourdough Expedition, the first climbing ascent of the tallest mountain in North America, Denali Sourdough (novel) by Robin Sloan The Sourdoughs (film), an alternate title for the 1952 'Abbott & Costello' film Lost in Alaska The Sourdough (magazine), the professional journal of the Alaska Library Association Project Sourdough, a cigarette marketing scheme, an alternate name for Project SCUM

See also

Sourdough Sam, the mascot of the NFL's SF 49ers Sourdough Mountain Lookout, a fire lookout in the Sourdough Mountains The Puratos Sourdough Library, a library of bread doughs at the Puratos Center in Saint-Vith, Belgium

Bread (disambiguation) Dough (disambiguation) Sour (disambiguation)