Lake Titisee is a lake located in the southern part of the Black Forest in Baden-Württemberg. It covers an area of ​​1.3 km² and has an average depth of 20 meters. The lake was formed by the Feldberg Glacier; moraines created during the Pleistocene epoch now define its shoreline. The lake's outflow—situated at an elevation of 840 meters above sea level—is the Wutach River. The spa town of the same name, part of the municipality of Titisee-Neustadt, lies on the northern shore.