Sans Souci Valley was the name of a valley in San Francisco, California, in the area corresponding to present day's Lower Haight and Duboce Triangle neighborhoods. This valley once allowed excess storm water to flow from Buena Vista Hill and Lone Mountain (where the University of San Francisco is today), through the Panhandle, to the area located near Duboce Park, along the path today known to cyclists as The Wiggle.[1] The creek was not a surface creek in the dune region except as overflow.[2] The valley’s name, French for "without worry," comes from the Sanssouci Palace built by the Prussian monarch Frederick the Great in Potsdam, Germany.