High water mark
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A high water mark is a point that represents the maximum rise of a body of water over land. Such a mark is often the result of a flood, but high water marks may reflect an all-time high, an annual hig
Sign indicating high water marks of different floods in Missouri, U.S.
The strandline at Ringstead Beach, Dorset, UK
High water mark memorial at Lake Missoula, Montana, U.S.
High water mark sign in Bisset Park, Virginia, U.S.
Glacial Lake Missoula
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Lake Missoula was a prehistoric proglacial lake in western Montana that existed periodically at the end of the last ice age between 15,000 and 13,000 years ago. The lake measured about 3,000 square mi
High water mark
…Sign indicating high water marks of different floods in Missouri, U.S. The strandline at Ringstead Beach, Dorset, UK High water mark memorial at Lake Missoula, Montana, U.S. High water mark sign in Bisset Park, Virginia, U.S. High water marks of Arno river (Florence) floods on August 13, 1547 (left) and…
Wave-cut strandlines cut into the slope at left in photo. These cuts record former high-water lines, or shorelines. Gullies above the highway are the result of modern-day erosion. (NPS Photo)
Sediment deposited by the lake with a hammer for scale.
Missoula, Montana