Yellowstone Lake Sedge Bay to Promontory Southeast Wyoming

Yellowstone Lake is the largest body of water in Yellowstone National Park. The lake is 7,732 feet above sea level and covers 136 square miles with 110 miles of shoreline. While the average depth of the lake is 139 ft, its greatest depth is at least 394 ft. Yellowstone Lake is the largest freshwater lake above 7,000 ft in North America.
  • Location: Yellowstone National Park · Teton County, Wyoming, U.S.
  • Primary inflows: Yellowstone River
  • Primary outflows: Yellowstone River
  • Basin countries: U.S.
  • Max. length: 20 mi (32 km)
  • Max. width: 15 mi (24 km)
  • Surface area: 136 sq mi (350 km²)
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