American Falls Reservoir

American Falls Reservoir, at 56,000 acres, is the largest reservoir on the Snake River. Highway 39 rides the top of the reservoir’s 9-story-high dam for over half a mile and the lake can be seen stretching northeast as far as the horizon.

BIRDING: American Falls area is one of Idaho’s best year-round sites with the highest concentration of migratory shorebirds in the state. View the Idaho Birding Trail pdf.

BOATING: There are three boat ramps at the southwest end of the reservoir, one north of the dam. Parking, docks and fuel are available at the Seagull Bay Boat Club, which is a fee ramp. Parking, docks and camping are available at Willow Bay and at the West Side. Boat ramp just north of the dam. Sportsman’s Park in Aberdeen has fee camping, picnicking, boat ramp day use & walking path.

FISHING: Fish species include Largemouth Bass, rainbow trout, brown trout, and cutthroat trout, yellow perch, white sturgeon, and channel catfish. Fishing season open year-round. View Idaho Fishing Planner’s page.


2587 Seagull Bay Rd, American Falls, ID 83211


42.77968355833, -112.88354219217


View Google Map (click to open)

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