Fountain-Tallman Soda Works, Historic soda works museum in Placerville, California.

The Fountain-Tallman Soda Works is a two-story masonry building of stone and brick in Placerville, California, with walls more than 2 feet (0.61 m) thick, built in 1852 to keep ice and soda supplies cool. A small wood-framed hole in the wall drew water from a spring in the hillside behind.

John Fountain and Benjamin Tallman built this two-story masonry structure as a soda water factory in 1852. After the factory closed, the building served as the town jail and later as the Pacific Gas & Electric Company office from 1927 to 1961. Fay Ripley Cannon donated it to the El Dorado County Historical Society in 1981, and it was listed on the National Register of Historic Places on September 13, 1984.

The building represents the entrepreneurial spirit of Gold Rush settlers and now houses the Fountain & Tallman Museum, operated by the El Dorado County Historical Society, displaying artifacts, photographs, and memorabilia from the 19th and 20th centuries.

Located at 524 Main Street in Placerville, the museum is within walking distance of other historical markers and offers educational exhibits about early industrial processes, beverage production, and local commerce history.

When the stone floor was lifted during renovation, workers found a bowie knife whose handle had rotted away, flakes of gold, and shards of soda bottles stamped with the original owner's mark; all are displayed in the museum.