The clarity of Flathead Lake's waters is renowned. In the summer it is often easy to see through twenty feet of the water column. The lake is so clear because it is relatively low in nutrients (phosphorus and nitrogen) which promote the growth of algae.
Tally Lake near Whitefish is the deepest natural lake in Montana at 492 feet (150m). The mountains and valleys of the watershed also are scattered with numerous tarns (small alpine lakes).
At 1,943 feet (592 meters), Crater Lake is the deepest lake in the United States and one of the deepest in the world. The depths were first explored thoroughly in 1886 by a party from the U.S. Geological Survey.
The Great Lakes aren't all that great, in terms of depth anyway. At over a mile deep (1,642 meters or 5,387 feet) Lake Baikal in the Russian region of Siberia is the deepest lake in the world.
Are there any states with no lakes? The only state in the US with no natural lakes is Maryland. Although Maryland has rivers and other freshwater ponds, no natural body of water is large enough to qualify as a lake.
Situated in south-east Siberia, the 3.15-million-ha Lake Baikal is the oldest (25 million years) and deepest (1,700 m) lake in the world. It contains 20% of the world's total unfrozen freshwater reserve.
Lake Tahoe is the second deepest lake in the United. States and the tenth deepest in the world, with a. maximum depth measured at 1,645 ft (501 m), average. depth of 1,000 ft (305 m).
Lake Baikal, in Siberia, holds the distinction of being both the deepest lake in the world and the largest freshwater lake, holding more than 20% of the unfrozen fresh water on the surface of Earth. It is also the oldest freshwater lake in the world, with an estimated age of 20 million to 25 million years.