Natural lakes tend to be smaller and most are found at elevations above 9,000 feet (Nelson 1970). In Colorado, there are only 11 natural lakes larger than 50 surface acres. Reservoirs tend to be larger and are found at all elevations.
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Most of Colorado contains few natural bodies of water, but Grand Mesa is a stunning exception. The largest flat-top mountain in the world, the Grand Mesa region of the state is home to over 300 lakes, many of which are natural bodies of water.
How many lakes are there in Colorado? There are more than 4,000 lakes and reservoirs in Colorado. The largest that's completely in state is the Blue Mesa Reservoir.
Stretching all the way down to 1,645 feet deep, Lake Tahoe has beautiful crystal-clear waters at an elevation of 6,225 feet above sea level. Known for its phenomenal clarity, this ancient lake has the purest waters in North America, making this The Clearest Lake in the United States.
1. Pacific Tarn, Colorado. Photo courtesy of Colorado Ascents. As far as officially-named lakes are concerned, the highest lake in America is Pacific Tarn, a small pond that sits at an elevation of 13,420 feet above sea level atop the eastern ridge of Pacific Peak in Colorado's Tenmile Range.
Blue Lakes in Colorado's San Juan Wilderness. In fact, these lakes are so blue because of the presence of something floating in the water. As the warmer months hit, glaciers melt, thus filling these pools with their water.
Only one, Grand Lake, is natural. Farthest downstream is Granby Reservoir, which is Colorado's third largest, capable of holding 539,758 acre-feet of water during runoff of spring and early summer. This compares to Ruedi Reservoir's 102,373 acre-feet and Dillon's 257,304 acre-feet.
Grand Lake is Colorado's largest and deepest natural water body. The lake's beauty and proximity to the west entrance of Rocky Mountain National Park draw thousands of visitors annually.
Lake SuperiorLake Superior is the largest natural lake in the United States. It is 350 miles in length and 160 miles in width and is the world's largest freshwater lake by surface area and the second largest by volume. Over 80 species of fish make their home in Lake Superior, with around 20 being native.
Clear Lake is one of California's oldest lakes and the largest natural lake (177 km2) existing entirely within California. It is also believed to be the oldest natural lake in North America, with continuous lake sediments dating to the early Pleistocene, yielding age estimates of 1.8–3.0 million years old.
Lake Superior is the largest lake in the United States. This lake shares shorelines with Michigan, Minnesota, and parts of Ontario. This lake is known for holding 1/10th of the Earth's surface freshwater; it's massive. The lake's maximum depth is over 1,000 feet!
Lake George, known as the “Queen of American Lakes,” is 32 miles long and widely considered one of the country's most beautiful and cleanest lakes. Each year, the deep blue waters of Lake George, located in the southern Adirondack State Park, attract over 50,000 summer tourists.
Lake Michigan, the third largest by surface area (22,300 square miles) and second largest by volume (1,180 cubic miles), is the only Great Lake located entirely within the United States.