Shoreline fishing with worms and eggs can be good early in the year. As water temperatures climb in the summer, fish move to deeper water near the dam where boating anglers have better success trolling with spinners, rapalas or pop-gear. As waters cool again in the fall, reservoir wide fishing again picks up. Bullhead can be caught with worms or stinkbait still fished on the bottom. The perch in American Falls Reservoir can be caught with basic gear baited with worms or cutbait. They are schooling fish and once a school is found, the fishing can be very fast. Some crappie can be caught early in the year in shallow coves or inlets. Actively fish, by casting and retrieving repeatedly, a skirted lead-headed jig or worm tipped hook.
American Falls Reservoir is formed by American Falls Dam, which is a major facility on the Mindoka Project. 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 Upper Snake River Basin 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. Boat ramp elevations. 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. Recreational Activities: Biking Boating Camping Fishing Hunting Picnicking Recreational Vehicles Visitor Center Water Sports Wildlife Viewing.