Fishing in Ammon, ID
Best fishing spots in Ammon, ID
Snake River (Palisades Res. - American Falls Res.)
Idaho, United States
4.7
Ririe Reservoir
Idaho, United States
4.3
Becker Pond (Ryder Park)
Idaho, United States
4.5
Blacktail Creek
Idaho, United States
4.3
Gem State Kids Fishing Pond
Idaho, United States
5.0
Sunnydell Canal
Idaho, United States
Blackfoot Canal
Idaho, United States
Snake River Valley Canal
Idaho, United States
4.4
Porter Canal
Idaho, United States
3.3
Butte Market Lake Canal
Idaho, United States
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About Ammon fishing
Check out the best fishing spots in and around Ammon, Idaho. Anglers using Fishbrain have logged: 915 catches for Rainbow trout, 551 catches for Brown trout, and 344 catches for Smallmouth bass.
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Fishing regulations in Ammon
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 Rainbow trout as of July 25th, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.
Rainbow trout
Seasons
Open
Bag limit
6
Aggregate
6
Restrictions & requirements
Location regulation notes
Daily bag limits apply to all waters of the Upper Snake Region except as modified in Upper Snake Region Special Rule Waters. The possession limit is 3-times the daily bag limit.All waters open all year except as modified in Upper Snake Region Special Rule WatersFor more information please see https://idfg.idaho.gov/rules/fish p 35-36Special Rule Waters for the Upper Snake RegionBeaver Creek and tributariesTrout limit is 6, no harvest of Cutthroat TroutBecker Pond (Ryder Park Pond) 2 fish any speciesBig Lost River and tributariesDecember 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and-releasewhitefish limit is 0, catch-and-releaseSaturday of Memorial Day weekend through November 30trout limit is 6whitefish limit is 0, catch-and-releaseDry Beds (Snake River)Section: From the Highway 48 bridge upstream to the Great Feeder irrigation diversion headgateMay 1 through March 31Upper Snake Region general rules applyApril 1 through April 30it is legal to take fish with dip nets, by snagging or by handUpper Snake Region bag limits applyFall River and tributariesLimit is 2 trout, no harvest of Cutthroat TroutFish Creek (Harriman State Park)Trout limit is 6, no harvest of Cutthroat TroutFly-fishing onlyGolden Lake (Harriman State Park) Closed to fishingHenrys Fork (Snake River, North Fork) (see map on page 37) Section: South Fork Snake River/Henrys Fork confluence upstream to Vernon BridgeTrout limit is 2, no harvest of Cutthroat TroutSection: From Vernon Bridge upstream to Ashton DamDecember 1 through Friday before Memorial Day weekendtrout limit is 0catch-and-release onlySaturday of Memorial Day weekend through November 30trout limit is 2, no harvest of Cutthroat TroutSection: From Highway 20 bridge upstream to the posted boundary upstream of Riverside CampgroundTrout limit is 2, no harvest of Cutthroat TroutSection: From the posted boundary upstream of the Riverside Campground upstream to the lower Harriman State Park boundaryTrout limit is 0, catch-and-release, no bait allowed, barbless hooks requiredSection: From the lower Harriman State Park boundary upstream to the upper Harriman State Park boundary (Harriman Ranch)December 1 through June 14closed to fishingJune 15 through November 30trout limit is 0, catch-and-release, fly fishing only, barbless hooks requiredSection: From the upper Harriman State Park boundary to Island Park DamTrout limit is 0, catch-and-releaseNo bait allowed, barbless hooks requiredSection: From McCrea Bridge upstream to the Henrys Lake OutletDecember 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and- releaseSaturday of Memorial Day weekend through November 30trout limit is 6, only 2 may be Cutthroat Trout, no Cutthroat Trout under 16 inchesSection: From Henrys Lake Outlet upstream to the head of Big SpringsClosed to fishingAll other sections of Henrys Fork including Ashton and Island Park ReservoirsUpper Snake Region general rules applyHenrys Fork tributaries (except Warm River, Fall River, and Thurmon Creek)December 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and- releaseSaturday of Memorial Day weekend through November 30trout limit is 6, no harvest of Cutthroat TroutHenrys LakeSection: Those portions of the lake within the posted boundaries of Staley Springs and within 100 yards of Hatchery CreekClosed to fishingRemainder of Henrys LakeFebruary 15 through Friday before Memorial Day Weekendtrout limit is 0, catch-and- releaseSaturday of Memorial Day Weekend through February 14trout limit is 2, Brook Trout counted in the trout limit Fishing must cease after the 2-trout daily bag limit has been retained Henrys Lake Outlet December 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and- release Saturday of Memorial Day weekend through November 30trout limit is 6, only 2 may be Cutthroat Trout, no Cutthroat Trout under 16 inchesHenrys Lake tributariesJuly 1 through March 31no harvest of Cutthroat TroutBrook Trout limit is 25, only 2 Brook Trout over 16 inchesApril 1 through June 30closed to fishing Hatchery Creekclosed to fishing Horseshoe Lake (Fremont County) - no motors Trout limit is 2Jim Moore PondTrout limit is 2Little Lost River and tributariesTrout limit is 2Long Lake (an alpine lake in Custer County)Trout limit is 2, none under 20 inchesMarket Lake Wildlife Management AreaMarch 1 through July 15no boats, rafts or float tubesMcCoy Creek and tributariesTrout limit is 6, no harvest of Cutthroat TroutMedicine Lodge Creek and tributariesTrout limit is 2, no harvest of Cutthroat TroutMud Lake (west of the posted boundary which runs north and south from McKenzie Point)March 1 through July 15no boats, rafts or float tubesPalisades Reservoir tributariesTrout limit is 6, no harvest of Cutthroat Trout No harvest of kokaneeSand Creek Wildlife Management AreaDecember 1 through Friday before Memorial Day weekendclosed to fishingSaturday of Memorial Day weekend through July 15no boats, rafts or float tubes Saturday of Memorial Day weekend through November 30motorized watercraft prohibited Additional closures to protect wildlife may be in effect. Call the Upper Snake Regional Office at 208-525-7290 for the latest information. Silver Lake (Harriman State Park) Closed to fishing Snake River Section: Gem Lake Dam to Osgood Diversion Dam Trout limit is 6, only 2 may be Cutthroat Trout Section: Osgood Diversion Dam upstream to the confluence of Henrys Fork (North and South Fork) Trout limit is 2, no harvest of Cutthroat Trout South Fork Snake River No harvest of Cutthroat TroutBrown Trout limit is 2No limit on Rainbow Trout or trout hybrids South Fork Snake River tributariesNo harvest of Cutthroat TroutNo limit on Rainbow Trout or trout hybrids June 1 through June 30closed to fishingTeardrop Lake (Snow Creek Pond) Trout limit is 2Teton RiverNo limit on Rainbow Trout or hybrids No harvest of Cutthroat TroutTeton River tributariesNo harvest of Cutthroat TroutNo limit on Rainbow Trout or hybridsJune 1 through June 30closed to fishingThurmon Creek (Harriman State Park) Closed to fishingWarm River and tributariesSection: Within the posted boundaries from the state highway 47 bridge downstream (approx. 350 yards) to the next bridge near the mouth of Robinson CreekClosed to fishingAll other sections of the Warm RiverDecember 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and-releaseMemorial Day weekend through November 30trout limit is 6, no harvest of Cutthroat TroutWillow CreekDecember 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and-releaseSaturday of Memorial Day weekend through November 30trout limit is 6, no harvest of Cutthroat TroutWillow Creek tributariesNo harvest of Cutthroat TroutNo limit on Rainbow Trout or hybridsJune 1 through June 30closed to fishingFor more information please see https://idfg.idaho.gov/rules/fish (see Pages 35-36 for details)
Additional information
Trout includes Brown Trout, Golden Trout, Lake Trout, Splake, Arctic Grayling, Cutthroat Trout, Rainbow Trout, and trout hy- brids (e.g. Tiger Trout)• Trout limit is 6, all species combinedDoes not include Bull Trout and Brook Trout which are listed separatelyFor more information please see https://idfg.idaho.gov/rules/fish
Edibility
Excellent
Synonyms
Oncorhynchus mykiss
Location specific information
Daily bag limits apply to all waters of the Upper Snake Region except as modified in Upper Snake Region Special Rule Waters. The possession limit is 3-times the daily bag limit.All waters open all year except as modified in Upper Snake Region Special Rule WatersFor more information please see https://idfg.idaho.gov/rules/fish p 35-36Special Rule Waters for the Upper Snake RegionBeaver Creek and tributariesTrout limit is 6, no harvest of Cutthroat TroutBecker Pond (Ryder Park Pond) 2 fish any speciesBig Lost River and tributariesDecember 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and-releasewhitefish limit is 0, catch-and-releaseSaturday of Memorial Day weekend through November 30trout limit is 6whitefish limit is 0, catch-and-releaseDry Beds (Snake River)Section: From the Highway 48 bridge upstream to the Great Feeder irrigation diversion headgateMay 1 through March 31Upper Snake Region general rules applyApril 1 through April 30it is legal to take fish with dip nets, by snagging or by handUpper Snake Region bag limits applyFall River and tributariesLimit is 2 trout, no harvest of Cutthroat TroutFish Creek (Harriman State Park)Trout limit is 6, no harvest of Cutthroat TroutFly-fishing onlyGolden Lake (Harriman State Park) Closed to fishingHenrys Fork (Snake River, North Fork) (see map on page 37) Section: South Fork Snake River/Henrys Fork confluence upstream to Vernon BridgeTrout limit is 2, no harvest of Cutthroat TroutSection: From Vernon Bridge upstream to Ashton DamDecember 1 through Friday before Memorial Day weekendtrout limit is 0catch-and-release onlySaturday of Memorial Day weekend through November 30trout limit is 2, no harvest of Cutthroat TroutSection: From Highway 20 bridge upstream to the posted boundary upstream of Riverside CampgroundTrout limit is 2, no harvest of Cutthroat TroutSection: From the posted boundary upstream of the Riverside Campground upstream to the lower Harriman State Park boundaryTrout limit is 0, catch-and-release, no bait allowed, barbless hooks requiredSection: From the lower Harriman State Park boundary upstream to the upper Harriman State Park boundary (Harriman Ranch)December 1 through June 14closed to fishingJune 15 through November 30trout limit is 0, catch-and-release, fly fishing only, barbless hooks requiredSection: From the upper Harriman State Park boundary to Island Park DamTrout limit is 0, catch-and-releaseNo bait allowed, barbless hooks requiredSection: From McCrea Bridge upstream to the Henrys Lake OutletDecember 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and- releaseSaturday of Memorial Day weekend through November 30trout limit is 6, only 2 may be Cutthroat Trout, no Cutthroat Trout under 16 inchesSection: From Henrys Lake Outlet upstream to the head of Big SpringsClosed to fishingAll other sections of Henrys Fork including Ashton and Island Park ReservoirsUpper Snake Region general rules applyHenrys Fork tributaries (except Warm River, Fall River, and Thurmon Creek)December 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and- releaseSaturday of Memorial Day weekend through November 30trout limit is 6, no harvest of Cutthroat TroutHenrys LakeSection: Those portions of the lake within the posted boundaries of Staley Springs and within 100 yards of Hatchery CreekClosed to fishingRemainder of Henrys LakeFebruary 15 through Friday before Memorial Day Weekendtrout limit is 0, catch-and- releaseSaturday of Memorial Day Weekend through February 14trout limit is 2, Brook Trout counted in the trout limit Fishing must cease after the 2-trout daily bag limit has been retained Henrys Lake Outlet December 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and- release Saturday of Memorial Day weekend through November 30trout limit is 6, only 2 may be Cutthroat Trout, no Cutthroat Trout under 16 inchesHenrys Lake tributariesJuly 1 through March 31no harvest of Cutthroat TroutBrook Trout limit is 25, only 2 Brook Trout over 16 inchesApril 1 through June 30closed to fishing Hatchery Creekclosed to fishing Horseshoe Lake (Fremont County) - no motors Trout limit is 2Jim Moore PondTrout limit is 2Little Lost River and tributariesTrout limit is 2Long Lake (an alpine lake in Custer County)Trout limit is 2, none under 20 inchesMarket Lake Wildlife Management AreaMarch 1 through July 15no boats, rafts or float tubesMcCoy Creek and tributariesTrout limit is 6, no harvest of Cutthroat TroutMedicine Lodge Creek and tributariesTrout limit is 2, no harvest of Cutthroat TroutMud Lake (west of the posted boundary which runs north and south from McKenzie Point)March 1 through July 15no boats, rafts or float tubesPalisades Reservoir tributariesTrout limit is 6, no harvest of Cutthroat Trout No harvest of kokaneeSand Creek Wildlife Management AreaDecember 1 through Friday before Memorial Day weekendclosed to fishingSaturday of Memorial Day weekend through July 15no boats, rafts or float tubes Saturday of Memorial Day weekend through November 30motorized watercraft prohibited Additional closures to protect wildlife may be in effect. Call the Upper Snake Regional Office at 208-525-7290 for the latest information. Silver Lake (Harriman State Park) Closed to fishing Snake River Section: Gem Lake Dam to Osgood Diversion Dam Trout limit is 6, only 2 may be Cutthroat Trout Section: Osgood Diversion Dam upstream to the confluence of Henrys Fork (North and South Fork) Trout limit is 2, no harvest of Cutthroat Trout South Fork Snake River No harvest of Cutthroat TroutBrown Trout limit is 2No limit on Rainbow Trout or trout hybrids South Fork Snake River tributariesNo harvest of Cutthroat TroutNo limit on Rainbow Trout or trout hybrids June 1 through June 30closed to fishingTeardrop Lake (Snow Creek Pond) Trout limit is 2Teton RiverNo limit on Rainbow Trout or hybrids No harvest of Cutthroat TroutTeton River tributariesNo harvest of Cutthroat TroutNo limit on Rainbow Trout or hybridsJune 1 through June 30closed to fishingThurmon Creek (Harriman State Park) Closed to fishingWarm River and tributariesSection: Within the posted boundaries from the state highway 47 bridge downstream (approx. 350 yards) to the next bridge near the mouth of Robinson CreekClosed to fishingAll other sections of the Warm RiverDecember 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and-releaseMemorial Day weekend through November 30trout limit is 6, no harvest of Cutthroat TroutWillow CreekDecember 1 through Friday before Memorial Day weekendtrout limit is 0, catch-and-releaseSaturday of Memorial Day weekend through November 30trout limit is 6, no harvest of Cutthroat TroutWillow Creek tributariesNo harvest of Cutthroat TroutNo limit on Rainbow Trout or hybridsJune 1 through June 30closed to fishingFor more information please see https://idfg.idaho.gov/rules/fish (see Pages 35-36 for details)
Regulations for
43°28′28.6″N 111°57′24.8″W
Regulations in the map
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FAQ about Ammon fishing
🎣 Where to fish in Ammon, Idaho?
Anglers in Ammon, ID recommend these top fishing spots: Snake River (Palisades Res. - American Falls Res.), Ririe Reservoir, Becker Pond (Ryder Park), Blacktail Creek, and Gem State Kids Fishing Pond.
🐟 What fish can you catch in Ammon?
Most commonly caught species around Ammon, ID:
- Rainbow trout - 915 reported catches
- Brown trout - 551 reported catches
- Smallmouth bass - 344 reported catches
- Yellow perch - 247 reported catches
- Cutthroat trout - 185 reported catches
📢 What are the latest Ammon fishing reports?
The latest Ammon, ID fishing reports are:
- @kidfishslaya95 reported a nice Largemouth bass at Wakeside Lake.
- @kidfishslaya95 reported a nice Yellow perch at Wakeside Lake.
- @kidfishslaya95 reported a nice Smallmouth bass at Ririe Reservoir.
- @kidfishslaya95 reported a nice Smallmouth bass at Ririe Reservoir.
- @kidfishslaya95 reported a nice Bluegill at Gem State Kids Fishing Pond.
📅 What is the best time to go fishing in Ammon?
Download the and see today's Fishing and Weather Forecast for Ammon, ID. We give you weather trends and help you find the perfect window to catch your next personal best. With Fishbrain Pro, you will get the following capabilities:
- Plan smarter: Get hour-by-hour fishing weather conditions.
- Fish at peak times: Use BiteTime™ predictions to maximize catches.
- Stay ahead of the weather: Get hyper-local, real-time updates.
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