Jackson Lake Dam, Gravity dam in Grand Teton National Park, US.
Jackson Lake Dam stretches 4,920 feet across the northern section of Jackson Lake, controlling water flow into the Snake River at an elevation of 6,760 feet.
The Bureau of Reclamation constructed the concrete dam between 1911 and 1916, replacing an earlier log structure that failed in 1910 at the natural lake outlet.
The dam functions as part of the Minidoka Project, supplying essential irrigation water to agricultural lands throughout the Snake River basin in Idaho.
Visitors can access parking areas near the dam structure to explore walking paths, fishing spots, and observation points along the Snake River.
Only the top 33 feet of Jackson Lake's water volume results from the dam's presence, as glacial movements naturally formed the lake's deeper sections.
Location: Teton County
GPS coordinates: 43.85765,-110.58959
Latest update: May 11, 2025 04:47
Jackson Lake
8.3 km
Jackson Lake Lodge
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String Lake Trail
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Leigh Canyon
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Emma Matilda Lake Trail
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Chapel of the Sacred Heart
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Jackson Lake Viewpoint
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Jenny Lake
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