Newest reservoirs in Yellowstone Country, MT
The year that a reservoir was first filled to the reservoir’s normal elevation – or the year that a natural lake was first dammed – is the determining factor in the age of the body of water. A large reservoir can take more than a year to fill after its dam is first closed. You can find many of the the world’s newest reservoirs on LakeLubbers in the comparison table below. Many of the world’s oldest reservoirs appear on the last page of that list. Note: For some lakes, the completion year data is unknown, so you may see fewer lakes than the total 3 articles we have published for Yellowstone Country, MT lakes.Thinking about booking a Yellowstone Country, MT lake vacation home rental, cabin or hotel?
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Below are lakes within USA > US West Region > Montana > Yellowstone Country, MT > Compared by newest (youngest) reservoirs and the year it was completed. This list does not represent all lakes in Yellowstone Country, MT, only the 3 Yellowstone Country, MT lake articles we have published on the LakeLubbers website.
Lake name ![]() |
Completion year ![]() |
Lake description |
---|---|---|
Mystic Lake (Montana, US West Region, USA, Yellowstone Country, MT) |
1925 | One of the prettiest lakes in Montana’s Yellowstone Country is Mystic Lake. This beautiful lake sits at 7,637 feet above sea level in the Absaroka-Bea… |
Hebgen Lake (Gold West Country, MT, Montana, US West Region, USA, Yellowstone Country, MT) |
1914 | Anglers will find some of Montana’s best stillwater trout fishing at Hebgen Lake. The 12,500-acre reservoir lies conveniently just outside the western… |