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American Falls Reservoir fishing reports
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Fishing regulations at American Falls Reservoir, ID
Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.
Fishing regulations in Idaho can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.
Below you will see fishing regulations for catching Smallmouth bass as of April 1st, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.
Smallmouth bass
Seasons
Open
Bag limit
6
Min size
14"
Measurement
Total Length
Aggregate
6
Daily bag limits apply to all waters of the Southeast Region except as modified in Southeast Region Special Rule Waters. The possession limit is 3-times the daily bag limit.All waters open all year except as modified in Southeast Region Special Rule WatersFor more information please see https://idfg.idaho.gov/rules/fish p 31-32
For more information please see https://idfg.idaho.gov/rules/fish
Special Rule Waters for the Southeast Region
American Falls ReservoirBass limit is 2, any sizeBear Lake- From the mouth of St. Charles Creek (Little Creek) for a radius of 300 yards into the lake is closed to fishing from April 16 through June 30
- Not more than 2 baited hooks, flies, or lures per line
- One line only when ice fishing. Two lines permitted when ice fishing with a two-pole permit
- Trout limit is 2
- Cisco limit is 30; dip-netting permitted January 1 through February 15. Dip nets may not exceed 18 inches in any dimension. Any size hole may be cut through the ice to catch cisco
- Whitefish limit is 10
- Trout limit is 2, no harvest of Cutthroat Trout
- Bass limit is 6, any size
- Trout limit is 6, no harvest of Cutthroat Trout
- Trout limit is 6, no harvest of Cutthroat Trout
- Trout limit is 6, no harvest of Cutthroat Trout No size, bag, or possession limits on bass
- Southeast Region general rules apply
- Upstream from Blackfoot Reservoir (includes: Diamond Creek, Lanes Creek, Slug Creek and tributaries)
- December 1 through June 30 - closed to fishing
- July 1 through November 30 - trout limit is 6, no harvest of Cutthroat Trout, no bait allowed, barbless hooks required
- Trout limit is 2
- Bass limit is 2, none under 20 inches
- Trout limit is 2, none under 20 inches
- One line only when ice fishing
- No bait allowed, barbless hooks required
- Trout limit is 6, only 2 may be Cutthroat Trout No size, bag or possession limits on Bass
- December 1 through June 30 - closed to fishing
- July 1 through November 30 - Southeast Region general rules apply
- Southeast Region general rules apply
- December 1 through June 14 - closed to fishing
- June 15 through November 30 - Southeast Region general rules apply
- contact Shoshone-Bannock Tribal Office
- Phone: (208) 236-1137
- https://www.sbtribes.com/fish-and-game/
- Bass limit is 2, none under 16 inches
- Trout limit is 6, no harvest of Cutthroat Trout
- Trout limit is 6, no harvest of Cutthroat Trout Montpelier Reservoir - Electric motors only
- Walleye limit is 6
- Bass limit is 6, any size
- trout limit is 0
- catch-and-release
- no bait allowed
- barbless hooks required
- trout limit is 6
- no harvest of Cutthroat Trout
- Southeast Region general rules apply
- contact Shoshone-Bannock Tribal Office
- Phone: (208) 236-1137
- https://www.sbtribes.com/fish-and-game/
- closed to fishing
- Southeast Region general rules apply
- Southeast Region general rules apply
- Bass limit is 2, any size
- Trout limit is 6, only 2 may be Cutthroat Trout
- trout limit is 0, catch-and-release
- trout limit is 2
- Trout limit is 6
- only 2 may be Cutthroat Trout Bass limit is 2
- any size
- Trout limit is 2
- none under 20 inches
- One line only when ice fishing
- No bait allowed
- barbless hooks required
- Trout limit is 2
- none under 20 inches
- No size, bag or possession limits on bass One line only when ice fishing
- No bait allowed
- barbless hooks required
- No motors
- Trout limit is 2
- none under 20 inches
- One line only when ice fishing
- No bait allowed
- barbless hooks required
For more information please see https://idfg.idaho.gov/rules/fish
Micropterus dolomieui
Daily bag limits apply to all waters of the Southeast Region except as modified in Southeast Region Special Rule Waters. The possession limit is 3-times the daily bag limit.All waters open all year except as modified in Southeast Region Special Rule WatersFor more information please see https://idfg.idaho.gov/rules/fish p 31-32
For more information please see https://idfg.idaho.gov/rules/fishContact Fort Hall Fish & Game: Phone: (208)236-1137https://www.sbtribes.com/fish-and-game/
Special Rule Waters for the Southeast Region
American Falls ReservoirBass limit is 2, any sizeBear Lake- From the mouth of St. Charles Creek (Little Creek) for a radius of 300 yards into the lake is closed to fishing from April 16 through June 30
- Not more than 2 baited hooks, flies, or lures per line
- One line only when ice fishing. Two lines permitted when ice fishing with a two-pole permit
- Trout limit is 2
- Cisco limit is 30; dip-netting permitted January 1 through February 15. Dip nets may not exceed 18 inches in any dimension. Any size hole may be cut through the ice to catch cisco
- Whitefish limit is 10
- Trout limit is 2, no harvest of Cutthroat Trout
- Bass limit is 6, any size
- Trout limit is 6, no harvest of Cutthroat Trout
- Trout limit is 6, no harvest of Cutthroat Trout
- Trout limit is 6, no harvest of Cutthroat Trout No size, bag, or possession limits on bass
- Southeast Region general rules apply
- Upstream from Blackfoot Reservoir (includes: Diamond Creek, Lanes Creek, Slug Creek and tributaries)
- December 1 through June 30 - closed to fishing
- July 1 through November 30 - trout limit is 6, no harvest of Cutthroat Trout, no bait allowed, barbless hooks required
- Trout limit is 2
- Bass limit is 2, none under 20 inches
- Trout limit is 2, none under 20 inches
- One line only when ice fishing
- No bait allowed, barbless hooks required
- Trout limit is 6, only 2 may be Cutthroat Trout No size, bag or possession limits on Bass
- December 1 through June 30 - closed to fishing
- July 1 through November 30 - Southeast Region general rules apply
- Southeast Region general rules apply
- December 1 through June 14 - closed to fishing
- June 15 through November 30 - Southeast Region general rules apply
- contact Shoshone-Bannock Tribal Office
- Phone: (208) 236-1137
- https://www.sbtribes.com/fish-and-game/
- Bass limit is 2, none under 16 inches
- Trout limit is 6, no harvest of Cutthroat Trout
- Trout limit is 6, no harvest of Cutthroat Trout Montpelier Reservoir - Electric motors only
- Walleye limit is 6
- Bass limit is 6, any size
- trout limit is 0
- catch-and-release
- no bait allowed
- barbless hooks required
- trout limit is 6
- no harvest of Cutthroat Trout
- Southeast Region general rules apply
- contact Shoshone-Bannock Tribal Office
- Phone: (208) 236-1137
- https://www.sbtribes.com/fish-and-game/
- closed to fishing
- Southeast Region general rules apply
- Southeast Region general rules apply
- Bass limit is 2, any size
- Trout limit is 6, only 2 may be Cutthroat Trout
- trout limit is 0, catch-and-release
- trout limit is 2
- Trout limit is 6
- only 2 may be Cutthroat Trout Bass limit is 2
- any size
- Trout limit is 2
- none under 20 inches
- One line only when ice fishing
- No bait allowed
- barbless hooks required
- Trout limit is 2
- none under 20 inches
- No size, bag or possession limits on bass One line only when ice fishing
- No bait allowed
- barbless hooks required
- No motors
- Trout limit is 2
- none under 20 inches
- One line only when ice fishing
- No bait allowed
- barbless hooks required
For more information please see https://idfg.idaho.gov/rules/fishContact Fort Hall Fish & Game: Phone: (208)236-1137https://www.sbtribes.com/fish-and-game/
Regulations for
42°55′11.3″N 112°44′30″W
FAQ about American Falls Reservoir fishing
American Falls Reservoir is a lake located in Bannock County, Idaho, United States. It is also intersecting with Bingham County, Idaho. Its coordinates are:
42°55′11.3″N 112°44′30″W
.Find the best fishing spots on American Falls Reservoir by looking at where other anglers have caught fish. This can easily be done in the where it is also possible to see big fish potential and how good fishing is right now along with Garmin® depth maps.
The most common species in American Falls Reservoir are:
- Smallmouth bass - 80 members reported to have caught this fish
- Rainbow trout - 61 members reported to have caught this fish
- Brown trout - 11 members reported to have caught this fish
The latest American Falls Reservoir fishing reports are:
- @Idahohighcountry reported a nice Smallmouth bass.
- @Idahohighcountry reported a nice Mirror carp.
- @carterpeterson3585 reported a nice Northern pikeminnow.
- @Idahohighcountry reported a nice Mirror carp.
- @Idahohighcountry reported a nice Common carp.
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