Largest lakes & reservoirs in Southeastern Idaho by water volume
The estimated volume of water that a lake contains is measured at the lake’s normal elevation. By this measure, the world’s largest freshwater lake is Siberia’s Lake Baikal.Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet. 1 acre-foot is equal to 325,851 US gallons. Siberia’s Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater – nearly 1 million gallons for every living person on earth.
The other – and more widely used – measure of a lake’s size is the lake’s surface acreage. By that measure, the world’s largest freshwater lake is North America’s Lake Superior.
Note: In the United States, an acre foot is a unit of volume used to refer to large-scale bodies of water. It is defined by the volume of water needed to cover 1 acre of surface area to a depth of 1 foot.
You can find many of the the world’s largest lakes (by water volume) on LakeLubbers. Note: For some lakes, the water volume data is unknown or does not apply, so you may see fewer lakes than the total 2 articles we have published for Southeastern Idaho lakes.
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Below are lakes within USA > US West Region > Idaho > Southeastern Idaho > Compared by water volume. This list does not represent all lakes in Southeastern Idaho, only the 2 Southeastern Idaho lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| American Falls Reservoir, ID (Idaho, Southeastern Idaho, US West Region, USA) |
1,671,300 ac-ft | With more than 56,000 acres of water sport, boating and fishing waters, surrounded by choice camping and picnic areas, American Falls Reservoir in sou… |
| Bear Lake, ID/UT (Cache Valley Region, UT, Idaho, Southeastern Idaho, US West Region, USA, Utah) |
650,000 ac-ft | A natural freshwater lake straddling the borders of Utah and Idaho, Bear Lake is a 70,000-acre turquoise jewel that lives up to its moniker of “Caribb… |
