Cape Horn Lake #1

Salmon River Drainage

  • Recommended Fishing Water
  • Family Fishing Water

Cape Horn Lake #1 in Custer County is 41.1 acres.

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The largest of two picturesque lakes endowed with fish, lily pads and frogs, Cape Horn Lake #1 is a 40-acre scenic mountain lake stocked with brook and rainbow trout. Especially well suited to float tubes or a small boat, this lake offers limited shoreline access. The area is good for wildlife viewing and is Idaho Birding Trail #20. Camping is available at nearby Forest Service sites. No facilities available here.

Facilities

Motor Restriction
No
Boat Ramp
No
Dock
No
Toilet
No
Campground
No
ADA Access
Yes

Directions

> From Stanley go west about 18 miles on State Highway 21; > From Lowman go east about 39 miles on State Highway 21; >> TURN NORTH (at Hwy 21 mile 112.5) onto Seafoam/Lola Creek/Forest Service Road (FR) 008 and take an immediate right. Go 0.4 mile, crossing Marsh Creek. Turn left/north on FR 40-008 and proceed 1.7 miles. Turn right/south on FR 158 and go 1 mile then turn left/east on FR 003 and continue 1.2 miles to the lake.

Recommended Game Fish

Species Observed in Surveys

Fish Stocking Records

Date
Species
Quantity
General Size
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Date
Species
Quantity
General Size
2024/08/05 Rainbow Trout - Triploid 393 Catchable (6+ inches)
2024/07/30 Rainbow Trout - Triploid 307 Catchable (6+ inches)
2024/07/09 Rainbow Trout - Triploid 404 Catchable (6+ inches)
2024/07/02 Rainbow Trout - Triploid 101 Catchable (6+ inches)
2024/06/13 Rainbow Trout - Triploid 329 Catchable (6+ inches)
2023/07/10 Rainbow Trout - Triploid 274 Catchable (6+ inches)
2023/06/21 Rainbow Trout - Triploid 335 Catchable (6+ inches)
2023/06/07 Rainbow Trout - Triploid 332 Catchable (6+ inches)
2022/06/28 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2022/06/07 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2021/08/31 Rainbow Trout - Triploid 440 Catchable (6+ inches)
2021/08/25 Rainbow Trout - Triploid 400 Catchable (6+ inches)
2021/08/02 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2021/06/29 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2021/06/10 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2020/08/18 Rainbow Trout - Triploid 600 Catchable (6+ inches)
2020/08/04 Rainbow Trout - Triploid 300 Catchable (12-14 inches)
2020/07/01 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2020/06/11 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2019/08/06 Rainbow Trout - Triploid 600 Catchable (6+ inches)
2019/07/01 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2019/06/06 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2018/09/11 Rainbow Trout - Triploid 550 Catchable (6+ inches)
2018/08/31 Rainbow Trout - Triploid 400 Catchable (6+ inches)
2018/08/07 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2018/07/10 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2018/06/06 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2017/08/29 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2017/08/11 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2017/07/17 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2017/06/28 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2016/08/10 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2016/07/26 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2016/06/29 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2016/06/09 Rainbow Trout - Triploid 300 Catchable (6+ inches)
2015/08/03 Rainbow Trout - Triploid 311 Catchable (6+ inches)
2015/07/09 Rainbow Trout - Triploid 306 Catchable (6+ inches)
2015/06/11 Rainbow Trout - Triploid 300 Catchable (6+ inches)
1985/06/17 Rainbow Trout 510 Catchable (6+ inches)
1983/06/22 Rainbow Trout 252 Catchable (6+ inches)
1979/08/30 Rainbow Trout 292 Catchable (6+ inches)
1979/06/26 Rainbow Trout 613 Catchable (6+ inches)
1978/08/25 Rainbow Trout 220 Catchable (6+ inches)
1978/06/28 Rainbow Trout 660 Catchable (6+ inches)
1977/06/28 Rainbow Trout 600 Catchable (6+ inches)
1977/05/20 Rainbow Trout 760 Catchable (6+ inches)
1976/09/01 Rainbow Trout 350 Catchable (6+ inches)
1976/08/21 Rainbow Trout 620 Catchable (6+ inches)
1975/07/16 Rainbow Trout 450 Catchable (6+ inches)
1973/09/13 Rainbow Trout 780 Fingerling (3-6 inches)
1973/07/10 Rainbow Trout 560 Catchable (6+ inches)
1972/07/19 Rainbow Trout 480 Catchable (6+ inches)
1971/07/27 Rainbow Trout 140 Catchable (6+ inches)
1970/07/14 Rainbow Trout 435 Catchable (6+ inches)
1969/07/22 Rainbow Trout 520 Catchable (6+ inches)
1968/07/17 Rainbow Trout 520 Catchable (6+ inches)
Source: IDFG Fish Stocking Database.

Licenses and Tags

Learn more about IDFG Licenses, Tags & Permits
 

Expect logging trucks and workers in burned areas. High clearance vehicles are recommended. The small parking area will not accommodate large trailers.

Fishing Rules, 2025 - 2027

All Waters Open All Year

Except as modified in Special Rules
Fishing is not allowed within the posted upstream and downstream boundary of any fish weir or trap.

Daily Bag Limits

The following daily bag limits apply to all waters within each region except as modified in the Special Rules. The possession limit is 3-times the daily bag limit.

Special Rules

No Special Rules for Cape Horn Lake #1.
Salmon Region Bag Limits
Bass (Largemouth and Smallmouth)

  • No bag, length, or possession limits

Brook Trout

  • Brook 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

Bull Trout

  • Bull Trout - catch-and-release

Kokanee

  • Kokanee limit is 25

Salmon (ocean-run)

  • Spring and summer Chinook Salmon seasons and limits are set by the Idaho Fish and Game Commission and issued in separate brochures
  • Seasons and limits for fall Chinook Salmon and Coho Salmon can be found here
  • Sockeye Salmon fishing is illegal. Defined as ocean-run Oncorhynchus nerka longer than 14 inches in the Salmon River drainage (excluding above Mosquito Flat Dam)
  • Fishing for salmon is prohibited unless a salmon season is specifically opened for that water

Steelhead (ocean-run)

  • Defined as Rainbow Trout longer than 20 inches in the Salmon River drainage (excluding the Lemhi and Pahsimeroi rivers, lakes and reservoirs, and ponds)
  • Fishing for steelhead is prohibited unless a steelhead season is specifically opened for that water. See fishing regulations for details

Sturgeon

  • Sturgeon - 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 Muskie

  • Tiger Muskie limit is 2, none under 40 inches

Trout includes Lake Trout, Golden Trout, Arctic Grayling, Cutthroat Trout, Rainbow Trout, Sunapee Trout and trout hybrids (e.g. Tiger Trout)

  • Trout limit is 6, all species combined
  • Chinook Salmon and steelhead placed in ponds are counted in the trout bag limit
  • Bull Trout and Brook Trout are listed separately

Whitefish

  • Whitefish 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 Fish including Pacific Lamprey

  • May not be harvested or possessed

All Other Fish Species includes bullfrogs and crayfish

  • No bag, length, or possession limits
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