Lake Fryxell is a glacial lake located in the McMurdo Dry Valleys of Antarctica. It is part of the larger Fryxell Basin and is known for its unique ecosystem, which includes microbial mats and various salt formations. The lake is fed by meltwater from surrounding glaciers, making it a vital water source in this arid region. The lake is named after the American geologist Dr. John Fryxell, who contributed significantly to Antarctic research. Lake Fryxell is also a site for scientific studies, particularly in understanding extremophiles and the effects of climate change on polar environments.