Idaho Fishing Reports ยท Lakes ยท Southeast Region
American Falls Reservoir is a big, shallow Snake River reservoir with big rainbows that cruise the shorelines, especially near Springfield and the dam.
Looking for the latest American Falls Reservoir fishing report? This page is updated by the AvidMax fly shop team with current conditions, wind, stocking news and the flies working now at American Falls Reservoir.
Water level
Wind forecast
American Falls Reservoir fishing report
Updated November 7, 2026.
The reservoir is low after irrigation season.
Leeches and midges near the upper end and Springfield.
Stocking report
See the Idaho Fish and Game fish stocking schedule for the latest stocking at American Falls Reservoir and other Idaho waters.
Load your fly box
Before you head to American Falls Reservoir, bring: Mini Leech #8-10, Woolly Bugger #6-8, Zebra Midge #14-18, Damselfly Nymph #10-12, Balanced Leech #10-12, Balanced Bou Leech #10-12, Slump Buster #6-8, Egg #12-14, Scud Bomb #12-16, Clouser Minnow #2-6.
Flies working right now
The flies above that we have in stock right now.
American Falls Reservoir lake details
| Access | Ramps near American Falls, Seagull Bay and Aberdeen. |
|---|---|
| Elevation | About 4,350 ft |
| Nearest town | American Falls, Idaho |
| Best season | Spring and fall |
| Fish | Rainbow trout, yellow perch, smallmouth |
| Regulations | Check the Idaho Department of Fish and Game rules before you go. An Idaho fishing license is required for anglers 14 and older, plus a steelhead or salmon permit where those fish are targeted. |
| Leaders and tippet | 9 to 12 ft leaders, 3X to 4X |
| Ice fishing | Limited ice fishing. |
| Camping | Willow Bay Recreation Area |
| Kids | Partly. |
| Good to know | Very windy. Shallow water warms fast in summer. |
Fishing by season
Winter
Low and cold.
Spring
Chironomids and big rainbows.
Summer
Warm and windy.
Fall
Leeches and rainbows.
How to get there
From Pocatello, take I-86 west to American Falls.