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Boating families win here: dock slips are reservable, sites in area B have electric, and the wide cul-de-sac layout is forgiving for first-time RV owners backing in. Memorial Day through Labor Day is peak season, so book six months out.
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Reservable
Sites
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"Open with limitatio...
Cell
No Service
Pets
No Pets
Select a month, then check for open campsites
Price
Varies
Booking
Reservable
Sites
Varies
Season
"Open with limitatio...
Cell
No Service
Pets
No Pets
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40.4755, -83.8850
Boating families win here: dock slips are reservable, sites in area B have electric, and the wide cul-de-sac layout is forgiving for first-time RV owners backing in. Memorial Day through Labor Day is peak season, so book six months out.
No sewer hookups, no Wi-Fi, no cell signal to speak of, and the open developed shoreline offers little privacy or shade for campers expecting a wooded feel. Pets aren't allowed either, full stop.
Context for the broader area surrounding Willow Island Campground, sourced from the federal Recreation.gov rec-area record.
American Falls Reservoir is formed by <A HREF="http://www.usbr.gov/projects/Facility.jsp?fac_Name=American+Falls+Dam">American Falls Dam</a>, which is a major facility on the <A HREF="http://www.usbr.gov/projects/Project.jsp?proj_Name=Minidoka%20Project">Mindoka Project. </a> Managed by the Bureau of Reclamation, Snake River Area Office, Bingham County; and the city of American Falls, this 87 square mile (56,000-acre) reservoir offers 100 miles of shoreline. Built primarily as a water storge reservoir for irrigation, it also provides electric power and flood control protection. When completely full, the reservoir is the largest reservoir on the Snake River and in Idaho. Boating, canoeing, fishing, swimming, wildlife viewing, picnicking, jet boats, water skiing, wildlife viewing, and windsurfing are the major recreation activities at American Falls Reservoir, located in Southeastern Idaho. American Fall's fish species include rainbow, brown, and cutthroat trout, crappie, yellow perch, white fish, bullhead and channel catfish. Season open year-round, however the fishery is dependent upon the availability of water to maintain the minimum pool necessary to carry over fish from year to year. Reservoir acre feet and total reservoir capacity and cubic feet/second release rates for rivers below <A HREF="http://www.usbr.gov/pn/hydromet/burtea.cfm">Upper Snake River Basin</a> reservoirs and select river locations are updated daily and graphically provided. Site offers restrooms, three boat ramps at the southwest end of the reservoir and one north of the dam, campground, picnic tables, swimming, and a visitor center. The visitor center features displays about various aspects of Shoshone and Bannock Indian prehistoric, historic, and contemporary culture. Other displays exhibit memorabilia associated with the construction of Ameircan Falls dam. <A HREF="http://www.usbr.gov/pn/hydromet/ramps/american/american.html">Boat ramp elevations.</a> Located near American Falls, adjacent to Interestate 86, the reservoir is easy to find. Numerous access sites, complete with ramps and docks, make it easy to use for boaters as well as shore anglers. Rainbow trout are by far the most popular fish in American Falls Reservoir. Fish weighing 5-6 pounds are not uncommon.
Directions: Located north of the town of American Falls, with good access via Interstate 86 and State Route 39. State Route 39 rides the top of the reservoir's 9-story-high dam for over half a mile.
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Summer brings the busiest window for lake recreation, with daytime highs typically in the mid-70s to low-90s°F and cooling lake breezes. Boating, swimming, and dock access peak during this season, but weekends and holidays (Memorial Day, July 4, Labor Day) fill up quickly. Late spring and early fall offer cooler temperatures, fewer crowds, and good fishing. Several reviewers stayed in May and June and praised the experience. Winter visits are quieter, with reduced services and most lake-focused activities paused.
Peak season with warm days. Most facilities open. Reserve ahead.
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Electric sites in area B; Water available by water tower and dump station; Dump Station by Welcome Center is available; Port-A-Jon at Shower House B
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