Geologic Origin of Lakes Lakes of Glacial Origin Cirque Lake Recognizing Cirque Lake from Topo Map Pater Noster Lakes Kettles on Glacial Outwash Plain Kettle Lakes Kettle Lakes on Pitted Outwash Plain Fjord Lake Thaw (Cryogenic) Lakes Continental Glaciation: Finger Lakes Lake Vostok, Antarctica Lakes of Tectonic Origin Graben Lakes Graben Lake: Tahoe Rift Graben Lake: Baikal More Rift Lakes Volcanic Lakes: Caldera Crater Lake Volcanic Lake Extraterrestrial Forces: Astroblemes Manicougan Solution Lakes Sinkhole Lake in Karst Topography Sinkhole Lake Formation Doline Fluviatile Lakes: Plunge Pool Lake Oxbow Lake Beaver Dam Lakes Anthropogenic Lakes Farm Ponds