Idaho lakes and reservoirs

Blackfoot Reservoir Fishing

A 16,888-acre Idaho reservoir in Bingham and Caribou counties.

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Photo: BLMIdaho, CC BY 2.0

Caribou County

Blackfoot Reservoir by the numbers

Blackfoot Reservoir covers 16,888 acres of Bingham and Caribou counties, according to IDFG. IDFG lists it with the IDFG Southeast Region. The run into Soda Springs is close to 16 miles. The Planner describes it this way: Flows into the Blackfoot River. It carries the Planner’s Recommended Fishing Water mark.

The access layers record 3 launch sites here. It carries 2 special rule lines of its own. Since 1968, IDFG lists 668 stocking records. The Planner lists a boat ramp, dock, toilet, campground and accessible facilities on site.

16,888surface acres
3launch sites
3recommended fish
668stocking rows

Surface acres as listed in the IDFG Idaho Fishing Planner (water page), read November 7, 2026. Census 2020 places.

Species

Fish the Planner names for Blackfoot Reservoir

For Blackfoot Reservoir, IDFG sources name the species below.

Cutthroat trout Rainbow trout Smallmouth bass Common carp Utah chub Utah sucker Yellow perch Mountain whitefish Rainbow x cutthroat trout Redside shiner

Fish IDFG surveys turned up in Blackfoot Reservoir

  • Common Carpsurvey 2025
  • Cutthroat Troutsurvey 2025
  • Rainbow Troutsurvey 2025
  • Utah Chubsurvey 2025
  • Utah Suckersurvey 2025
  • Yellow Perchsurvey 2025
  • Smallmouth Basssurvey 2022
  • Mountain Whitefishsurvey 2021
  • Catostomus sp.survey 2018
  • Rainbow x Cutthroat Troutsurvey 2018
  • Cottussurvey 2015
  • Redside Shinersurvey 2010

Survey rows report presence in a sampling year, not abundance.

IDFG Idaho Fishing Planner water page, read November 7, 2026.

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Access

Launching a boat on Blackfoot Reservoir

  • Hopkins Landing on Blackfoot Reservoirboating access, ramp, restroom, camping
  • Pebble Beach boat ramp on Blackfoot Reservoirboating access, ramp, restroom, camping
  • Poison Creek boat ramp on Blackfoot Reservoirboating access, ramp, camping

More launches around Blackfoot Reservoir

  • Dike Lake (Blackfoot Reservoir) boat rampDike Lake, 3 miles south
  • Blackfoot River WMA launchBlackfoot River, 13 miles east

Bank fishing sites around Blackfoot Reservoir

  • Blackfoot River ParkBlackfoot River, 5 miles

The Planner lists no motor restriction here.

IDFG Fishing and Boating Access Sites layer, BLM Idaho recreation site points and USDA Forest Service recreation opportunities (EDW), read November 7, 2026.

Stocking

IDFG releases at Blackfoot Reservoir since 2024

Stocking at Blackfoot Reservoir spans 1968 to 2026 across 668 rows.

  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 2,445 fish, Catchable (12-14 inches), October 26, 2026
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 17,591 fish, Catchable (6+ inches), October 23, 2026
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 67,800 fish, Fry (0-3 inches), September 1, 2026
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 184,416 fish, Fry (0-3 inches), August 31, 2026
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 10,485 fish, Catchable (6+ inches), April 22, 2026
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 19,488 fish, Catchable (6+ inches), April 21, 2026
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 29,700 fish, Catchable (6+ inches), October 28, 2025
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 21,590 fish, Catchable (6+ inches), October 24, 2025
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 9,640 fish, Catchable (6+ inches), October 23, 2025
  • Rainbow Trout (triploid)Rainbow Trout – Triploid, 21,060 fish, Catchable (6+ inches), September 22, 2025

Stocking rows as printed on the IDFG Fishing Planner page (date, species, number and size as listed), read November 7, 2026.

Limits

Bag limits for Blackfoot Reservoir

GroupRegion rule as printed
BassBass limit is 6, both species combined; None under 14 inches
Brook TroutBrook Trout limit is 25; Harvest allowed during any open season unless otherwise noted under Special Rules – if gear or bait restrictions are listed, they apply when fishing for Brook Trout
CiscoCisco limit is 30
KokaneeKokanee limit is 6
SturgeonSturgeon – catch-and-release; Sturgeon must not be removed from the water and must be released upon landing; Barbless hooks, sliding swivel device to secure a weight, and a lighter test line to secure weight to sliding swivel device are required. See fishing regulations for details
Tiger MuskieTiger Muskie limit is 2, none under 40 inches
TroutTrout limit is 6, all species combined; Brook Trout are listed separately
WhitefishWhitefish limit is 25; Harvest allowed during any open season unless otherwise noted under Special Rules – if gear or bait restrictions are listed, they apply when fishing for whitefish
Protected Nongame FishMay not be harvested or possessed (also known as Green Sucker)
All Other Fish SpeciesNo bag, length or possession limit

Read the IDFG Southeast Region rows first, then the exceptions IDFG prints for Blackfoot Reservoir.

Exceptions written for Blackfoot Reservoir

Rule as printed
Trout limit is 6, no harvest of Cutthroat Trout
No size, bag, or possession limits on bass

Special rules printed for Blackfoot Reservoir on its IDFG Fishing Planner page (Idaho Fishing Seasons and Rules, 2025-2027), read November 7, 2026.

Fishing here takes an Idaho fishing license; Idaho Code 36-416 sets the annual statutory fee at $28.75 for residents and $106.25 for nonresidents, and steelhead or salmon fishing takes its own permit.

Region bag limits from Idaho Fishing Seasons and Rules, 2025-2027 for the Southeast Region, as printed on IDFG Fishing Planner water pages (the brochure PDF on idfg.idaho.gov was unreachable during site maintenance), read November 7, 2026.

Fishing license fees as set in Idaho Code 36-416 (statute; IDFG sale prices add vendor and processing fees), read November 7, 2026.

Compare

Stacking Blackfoot Reservoir against nearby reservoirs

The biggest neighbour here is Grays Lake, 23,138 acres.

LakeDistanceAcresRegionRecommended fishLaunch sites
Blackfoot Reservoir16,888Southeast Region33
Dike Lake4 miles south57Southeast Region01
Hole in the Rock4 miles south144Southeast Region00
Little Blackfoot Reservoir8 miles east48Southeast Region00
Little Valley Reservoir (Bonneville County)14 miles north258Southeast Region00
Grays Lake15 miles northeast23,138Southeast Region00

IDFG Idaho Fishing Planner and the agency access layers, read November 7, 2026.

Nearby

In the Blackfoot Reservoir neighbourhood

Still water for a second day beyond Blackfoot Reservoir

  • Dike Lake4 miles south
  • Hole in the Rock4 miles south
  • Little Blackfoot Reservoir8 miles east
  • Little Valley Reservoir (Bonneville County)14 miles north
  • Grays Lake15 miles northeast

Where to grab leaders, hooks and bait for Blackfoot Reservoir

  • CAL Ranch Blackfootsporting goods store, Blackfoot

Idaho communities handy to Blackfoot Reservoir

  • Soda Springs16 miles
  • Montpelier42 miles
  • Shelley43 miles

Counties that share Blackfoot Reservoir

  • Bingham Countyseat: Blackfoot
  • Caribou Countyseat: Soda Springs
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Fish photos

Gem State fish to know on sight at Blackfoot Reservoir

Cutthroat Trout, Idaho
Cutthroat Trout
Photo: Yellowstone National Park, Public domain
Rainbow Trout, Idaho
Rainbow Trout
Photo: cogdogblog, CC BY 2.0
Smallmouth Bass, Idaho
Smallmouth Bass
Photo: Yellowstone National Park, Public domain
Mountain Whitefish, Idaho
Mountain Whitefish
Photo: Mike Cline, Public domain
Answers

Blackfoot Reservoir: what Gem State anglers keep asking

Which Idaho county is Blackfoot Reservoir in?

Its Planner point lies in Bingham and Caribou counties, about 16 miles from Soda Springs.

How big is Blackfoot Reservoir by the IDFG figure?

The Planner says 16,888 acres.

How many launch sites reach Blackfoot Reservoir?

3 launch sites listed; start with Hopkins Landing on Blackfoot Reservoir.

Does Blackfoot Reservoir hold trout?

On the recommended list: cutthroat trout, rainbow trout and smallmouth bass.

Which brochure lines govern Blackfoot Reservoir?

Under the IDFG Southeast Region block: Trout limit is 6, all species combined; In rivers and streams, only 2 of the 6 trout may be Cutthroat Trout; Brook Trout are listed separately. A special rule changes part of that here.

What does a nonresident need at Blackfoot Reservoir?

Fishing here takes an Idaho fishing license; Idaho Code 36-416 sets the annual statutory fee at $28.75 for residents and $106.25 for nonresidents, and steelhead or salmon fishing takes its own permit.

Is Blackfoot Reservoir stocked?

Latest row: Rainbow Trout – Triploid, 2,445 fish, Catchable (12-14 inches), October 26, 2026.

Where would I pick up nightcrawlers on the road to Blackfoot Reservoir?

CAL Ranch Blackfoot is the nearest stop we list in the same county.

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