crater lakes
Water-filled volcanic depressions
Crater lakes are bodies of water that form in volcanic craters or calderas.
The depression left by volcanic activity collects rainwater, groundwater, or snowmelt, creating lakes often remarkable for their depth and circular shape.
Oregon's Crater Lake, formed in a collapsed volcano, is the deepest lake in the United States.
Some crater lakes sit atop active volcanic systems, their waters heated or acidified by geothermal activity.
- calderaCollapsed volcanic summit basin
- volcanicOf fiery mountain origin
- volcanic activityGeological heat release
- basinConcave water receptacle
- freshwaterNon-saline aquatic environment
deep blue · ring of fire · dormant volcano · fumaroles · Azores · geology · lava domes · Albertine Rift · endemic species · depression · alkaline water · formation · explosion · aquatic · still waters · stillness · hidden depths · geothermal
- watersoceans, seas, Red Sea, Black Sea, rivers
- water bodiessea, rivers, streams, stream, ponds
- geologybedrock, fault lines, faults, rock, basalt
- lakesSuperior, Erie, Michigan, Ontario, Huron
- IcelandReykjavik, volcano, volcanoes, geyser, geysers
- Ecuador GeographyAndes, Quito, Galapagos Islands, volcanoes, valleys
crater lakesglacial lakes
Meltwater-filled eroded basins
oxbow lakes · man-made lakes · coastal lagoons · prairie potholes · billabongs
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