Ben Ross Reservoir (C. Ben Ross Reservoir)

Flows into the Unnamed Stream

  • Recommended Fishing Water

Ben Ross Reservoir (C. Ben Ross Reservoir) in Adams County is 357.9 acres.

Interactive Map
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Facilities

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

Directions

 

From Cambridge, Idaho, travel 10.5 miles north on Highway 95. Take a right and head south on Indian Valley Road for 5.5 miles. Head straight on Swisher Road. You’ll reach Ben Ross Reservoir in 1.5 miles. The entire reservoir is located on private property. Be respectful, clean, and courteous.

Recommended Game Fish

Species Observed in Surveys

Fish Stocking Records

Date Species Quantity General Size
2017/06/14 Bluegill 10 Catchable (6+ inches)
2017/06/14 Crappie 30 Catchable (6+ inches)
2017/06/14 Crappie 600 Catchable (6+ inches)
2016/06/17 Bluegill 20 Fingerling (3-6 inches)
2016/06/17 Crappie 20 Fingerling (3-6 inches)
2016/06/17 Crappie 700 Fingerling (3-6 inches)
2015/06/18 Bluegill 20 Fingerling (3-6 inches)
2015/06/18 Crappie 150 Fingerling (3-6 inches)
2015/06/18 Crappie 950 Fingerling (3-6 inches)
2011/08/12 Bluegill 51 Fingerling (3-6 inches)
2011/08/12 Crappie 51 Fingerling (3-6 inches)
1989/10/23 Bluegill 300 Fingerling (3-6 inches)
1988/03/16 Rainbow Trout 4,200 Catchable (6+ inches)
1987/04/10 Rainbow Trout 4,200 Catchable (6+ inches)
1987/03/26 Rainbow Trout 4,080 Catchable (6+ inches)
1986/05/15 Rainbow Trout 3,990 Catchable (6+ inches)
1986/03/21 Rainbow Trout 3,900 Catchable (6+ inches)
1985/05/02 Rainbow Trout 3,520 Catchable (6+ inches)
1985/04/15 Rainbow Trout 4,495 Catchable (6+ inches)
1983/06/27 Rainbow Trout 1,960 Catchable (6+ inches)
1983/06/27 Rainbow Trout 14,040 Fingerling (3-6 inches)
1983/05/25 Rainbow Trout 1,260 Catchable (6+ inches)
1982/05/27 Rainbow Trout 600 Adults
1982/05/27 Rainbow Trout 1,050 Catchable (6+ inches)
1981/07/28 Rainbow Trout 8,910 Catchable (6+ inches)
1981/05/06 Rainbow Trout 1,860 Catchable (6+ inches)
1980/03/24 Rainbow Trout 4,160 Catchable (6+ inches)
1979/05/03 Rainbow Trout 6,300 Catchable (6+ inches)
1978/05/01 Rainbow Trout 6,720 Catchable (6+ inches)
1977/06/01 Rainbow Trout 2,340 Catchable (6+ inches)
1977/05/13 Rainbow Trout 507 Adults
1976/05/20 Rainbow Trout 4,800 Catchable (6+ inches)
1975/04/21 Rainbow Trout 5,040 Catchable (6+ inches)
1974/04/22 Rainbow Trout 7,920 Catchable (6+ inches)
1973/04/06 Rainbow Trout 6,090 Catchable (6+ inches)
1973/04/02 Rainbow Trout 7,920 Catchable (6+ inches)
1972/05/30 Rainbow Trout 10,800 Catchable (6+ inches)
1972/05/10 Rainbow Trout 4,560 Catchable (6+ inches)
1972/05/09 Rainbow Trout 20,007 Fry (0-3 inches)
1972/05/05 Rainbow Trout 9,600 Catchable (6+ inches)
1972/04/21 Rainbow Trout 3,120 Adults
1971/05/06 Rainbow Trout 15,360 Catchable (6+ inches)
1971/04/28 Rainbow Trout 5,520 Catchable (6+ inches)
1971/04/07 Rainbow Trout 3,600 Catchable (6+ inches)
1970/07/01 Rainbow Trout 7,440 Catchable (6+ inches)
1970/03/23 Rainbow Trout 8,000 Catchable (6+ inches)
1969/06/17 Rainbow Trout 5,040 Catchable (6+ inches)
1969/05/12 Rainbow Trout 5,250 Catchable (6+ inches)
1969/05/01 Rainbow Trout 5,670 Catchable (6+ inches)
1969/04/10 Rainbow Trout 10,800 Catchable (6+ inches)
1968/03/22 Rainbow Trout 10,000 Catchable (6+ inches)
Source: IDFG Fish Stocking Database.

Licenses and Tags

Learn more about IDFG Licenses, Tags & Permits
 

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

Ben Ross Reservoir
  • Bass limit is 2, none between 12 and 16 inches
Southwest Region Bag Limits
Bass (Largemouth and Smallmouth)

  • Bass limit is 6, both species combined
  • None under 12 inches

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 6

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 Snake River drainage below Hells Canyon Dam, 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 lakes and reservoirs). Between Hells Canyon Dam and Oxbow Dam and the Boise River from its mouth upstream to Barber Dam during steelhead seasons, steelhead are Rainbow Trout over 20 inches with the adipose fin clipped (as evidenced by a healed scar)
  • 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 Brown Trout, Lake Trout, Golden Trout, Arctic Grayling, Cutthroat Trout, Rainbow Trout, land-locked Chinook and Coho Salmon, 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

Walleye (Stocked illegally in this Region. May be harmful to existing fisheries.)

  • No bag, length, or possession limits. Harvest is encouraged

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 includes 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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