San Francisco is an iconic and symbolic city. But only when you look beyond the picture-postcards of the Golden Gate Bridge and the quaint cable cars do you realize that the city’s most interesting stories are not the Summer of Love, the Beats, or even the latest Gold Rush in Silicon Valley.

Join historian Chris Carlsson on a bike tour of San Francisco's various labor movements, and discover memories, echoes, and ghosts of the city's storied past, often hiding in plain sight.

The tour begins at 1 pm in Mission Dolores at Chula Alley, near 16th and Dolores. The trajectory will take us downtown and loop back along the waterfront through Dogpatch to end at Wattis (145 Hooper Street, San Francisco) around 3 pm

Chris Carlsson has lived in San Francisco since 1978 and has been self-employed in various capacities since the early 1980s. He is the author of numerous books, including the lauded Hidden San Francisco: A Guide to Lost Landscapes, Unsung Heroes & Radical Histories. He helped co-found Critical Mass in September, 1992, and is the director of Shaping San Francisco, and co-director of the archive of San Francisco history at FoundSF.org. Carlsson has taught at the San Francisco Art Institute, the California Institute of Integral Studies, and most recently, the University of San Francisco.