Fort Peck Lake
geographical name
reservoir about 130 miles (209 kilometers) long in northeastern Montana formed in the Missouri River by
Fort Peck Dam
, which was completed in 1940
Cite this Entry
“Fort Peck Lake.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Fort%20Peck%20Lake. Accessed 1 Dec. 2025.
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