Anderson Ranch Reservoir

Flows into the South Fork Boise River

  • Recommended Fishing Water

Anderson Ranch Reservoir in Elmore County is 4,607.7 acres.

Interactive Map
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Anderson Ranch Reservoir is most notably a Kokanee fishery; however, anglers can also catch Rainbow Trout, Bull Trout, Fall Chinook, Smallmouth Bass, Yellow Perch, and the occasional Mountain Whitefish. Depending on the Spring, Kokanee fishing typically starts in mid/late April. Early season, Kokanee can be caught relatively shallow (1-15 feet). As the season warms up, downriggers are needed to catch them at depths that typically range from 35-80 feet.

Facilities

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

Recommended Game Fish

Species Observed in Surveys

Fish Stocking Records

Date Species Quantity General Size
2024/05/29 Kokanee 75,000 Fingerling (3-6 inches)
2024/05/29 Kokanee 287,133 Fry (0-3 inches)
2023/05/31 Kokanee 280,964 Fry (0-3 inches)
2022/06/02 Kokanee 41,665 Fingerling (3-6 inches)
2022/06/02 Kokanee 82,886 Fry (0-3 inches)
2021/06/02 Kokanee 74,993 Fingerling (3-6 inches)
2021/06/02 Kokanee 149,940 Fry (0-3 inches)
2020/09/23 Rainbow Trout - Triploid 86,532 Fingerling (3-6 inches)
2020/09/23 Rainbow Trout - Triploid 13,800 Fry (0-3 inches)
2020/06/02 Kokanee 50,600 Fingerling (3-6 inches)
2020/06/02 Kokanee 101,208 Fry (0-3 inches)
2019/05/30 Chinook Salmon - Fall 2,678 Fingerling (3-6 inches)
2019/05/30 Chinook Salmon - Fall - Triploid 2,879 Fingerling (3-6 inches)
2018/06/12 Kokanee 173,760 Fry (0-3 inches)
2018/05/31 Chinook Salmon - Fall 5,130 Fingerling (3-6 inches)
2018/05/31 Chinook Salmon - Fall - Triploid 5,123 Fingerling (3-6 inches)
2017/06/05 Kokanee 200,311 Fingerling (3-6 inches)
2017/06/01 Chinook Salmon - Fall 10,844 Fingerling (3-6 inches)
2016/06/02 Kokanee 172,500 Fry (0-3 inches)
2016/05/31 Chinook Salmon - Fall 4,722 Fingerling (3-6 inches)
2016/05/31 Chinook Salmon - Fall - Triploid 4,800 Fingerling (3-6 inches)
2015/06/04 Chinook Salmon - Fall 5,553 Fingerling (3-6 inches)
2014/09/30 Rainbow Trout - Triploid 35,995 Fingerling (3-6 inches)
2013/05/02 Chinook Salmon - Fall 35,316 Fingerling (3-6 inches)
2012/05/24 Rainbow Trout - Triploid 600 Catchable (6+ inches)
2011/05/06 Rainbow Trout - Triploid 599 Catchable (6+ inches)
2011/05/05 Kokanee 183,200 Fry (0-3 inches)
2011/05/05 Rainbow Trout - Triploid 15,300 Catchable (6+ inches)
2011/05/04 Rainbow Trout - Triploid 600 Catchable (6+ inches)
2010/05/04 Rainbow Trout - Triploid 15,080 Catchable (6+ inches)
2010/04/29 Kokanee 150,183 Fingerling (3-6 inches)
2009/04/16 Rainbow Trout - Triploid 14,945 Catchable (6+ inches)
2008/07/02 Rainbow Trout - Triploid 400 Catchable (6+ inches)
2008/07/01 Rainbow Trout - Triploid 1,050 Catchable (6+ inches)
2008/06/17 Rainbow Trout - Triploid 14,950 Catchable (6+ inches)
2007/05/10 Rainbow Trout - Triploid 15,680 Catchable (6+ inches)
2006/04/19 Rainbow Trout - Triploid 15,080 Catchable (6+ inches)
2005/05/22 Kokanee 200,080 Fry (0-3 inches)
2005/04/04 Rainbow Trout - Triploid 15,400 Catchable (6+ inches)
2004/06/02 Kokanee 202,500 Fry (0-3 inches)
2004/04/05 Rainbow Trout - Triploid 15,000 Catchable (6+ inches)
2003/10/07 Rainbow Trout - Triploid 15,120 Catchable (6+ inches)
2003/05/18 Kokanee 49,880 Fingerling (3-6 inches)
2003/05/09 Rainbow Trout - Triploid 26,400 Fingerling (3-6 inches)
2003/04/17 Rainbow Trout - Triploid 14,000 Catchable (6+ inches)
2003/04/16 Rainbow Trout - Triploid 4,000 Catchable (6+ inches)
2002/11/04 Rainbow Trout - Triploid 9,720 Catchable (6+ inches)
2002/05/10 Rainbow Trout - Triploid 15,370 Catchable (6+ inches)
2001/05/01 Rainbow Trout - Triploid 5,188 Catchable (6+ inches)
2001/04/09 Rainbow Trout - Triploid 7,200 Catchable (6+ inches)
2000/10/16 Rainbow Trout 20,059 Catchable (6+ inches)
2000/03/30 Rainbow Trout 27,310 Catchable (6+ inches)
1999/04/26 Rainbow Trout 7,500 Catchable (6+ inches)
1998/08/31 Rainbow Trout 102,900 Fingerling (3-6 inches)
1998/04/10 Rainbow Trout 7,560 Catchable (6+ inches)
1997/04/29 Rainbow Trout 101,575 Fingerling (3-6 inches)
1997/03/27 Rainbow Trout 7,522 Catchable (6+ inches)
1996/09/10 Rainbow Trout 96,000 Fingerling (3-6 inches)
1996/09/10 Steelhead 171,010 Fry (0-3 inches)
1996/07/25 Rainbow Trout 38,000 Fingerling (3-6 inches)
1996/06/13 Kokanee 202,350 Fingerling (3-6 inches)
1996/04/23 Rainbow Trout 15,200 Catchable (6+ inches)
1995/09/06 Rainbow Trout 146,743 Fingerling (3-6 inches)
1995/09/06 Steelhead 85,616 Fry (0-3 inches)
1995/04/24 Rainbow Trout 15,400 Catchable (6+ inches)
1994/09/19 Rainbow Trout 100,100 Fingerling (3-6 inches)
1994/05/02 Kokanee 161,200 Fry (0-3 inches)
1994/04/19 Rainbow Trout - Triploid 15,035 Catchable (6+ inches)
1993/06/01 Rainbow Trout 100,224 Fingerling (3-6 inches)
1993/05/11 Rainbow Trout 13,560 Fingerling (3-6 inches)
1993/05/11 Rainbow Trout 186,600 Fry (0-3 inches)
1993/05/11 Rainbow Trout - Triploid 15,120 Catchable (6+ inches)
1993/04/22 Rainbow Trout 99,125 Fingerling (3-6 inches)
1992/05/05 Kokanee 231,430 Fingerling (3-6 inches)
1992/04/09 Rainbow Trout - Triploid 25,800 Catchable (6+ inches)
1992/04/08 Rainbow Trout 89,980 Fingerling (3-6 inches)
1991/05/23 Rainbow Trout 30,000 Fingerling (3-6 inches)
1991/05/22 Rainbow Trout 18,550 Fingerling (3-6 inches)
1991/05/07 Kokanee 204,750 Fingerling (3-6 inches)
1991/05/06 Kokanee 147,420 Fingerling (3-6 inches)
1991/05/01 Rainbow Trout 80,101 Fingerling (3-6 inches)
1991/05/01 Rainbow Trout 20,000 Fry (0-3 inches)
1990/07/19 Rainbow Trout 101,520 Fingerling (3-6 inches)
1990/06/27 Rainbow Trout 10,000 Catchable (6+ inches)
1990/04/19 Rainbow Trout 100,440 Fingerling (3-6 inches)
1989/06/29 Chinook Salmon - Fall 10,000 Fingerling (3-6 inches)
1989/04/28 Rainbow Trout 9,060 Catchable (6+ inches)
1989/04/26 Rainbow Trout 100,280 Fry (0-3 inches)
1989/04/25 Rainbow Trout 100,620 Fry (0-3 inches)
1988/10/21 Rainbow Trout 3,300 Catchable (6+ inches)
1988/07/08 Rainbow Trout 55,440 Fingerling (3-6 inches)
1988/06/22 Rainbow Trout 5,000 Catchable (6+ inches)
1988/05/13 Rainbow Trout 5,033 Catchable (6+ inches)
1988/04/29 Rainbow Trout 99,876 Fingerling (3-6 inches)
1988/04/13 Rainbow Trout 41,400 Fingerling (3-6 inches)
1987/06/12 Rainbow Trout 4,730 Catchable (6+ inches)
1987/05/29 Rainbow Trout 33,013 Fingerling (3-6 inches)
1987/05/28 Rainbow Trout 124,980 Fingerling (3-6 inches)
1987/05/27 Rainbow Trout 42,900 Fingerling (3-6 inches)
1987/05/06 Rainbow Trout 5,468 Catchable (6+ inches)
1986/05/21 Rainbow Trout 50,172 Fry (0-3 inches)
1986/05/17 Rainbow Trout 54,310 Fingerling (3-6 inches)
1986/04/23 Rainbow Trout 86,800 Fingerling (3-6 inches)
1985/07/02 Rainbow Trout 269,950 Fingerling (3-6 inches)
1985/07/02 Rainbow Trout 135,000 Fry (0-3 inches)
1985/05/07 Kokanee 148,050 Fry (0-3 inches)
1984/06/20 Rainbow Trout 5,000 Catchable (6+ inches)
1984/06/13 Rainbow Trout 5,075 Catchable (6+ inches)
1984/06/05 Chinook Salmon - Fall 28,350 Fry (0-3 inches)
1984/06/01 Rainbow Trout 164,329 Fingerling (3-6 inches)
1984/05/30 Rainbow Trout 176,117 Fingerling (3-6 inches)
1984/05/24 Rainbow Trout 171,135 Fingerling (3-6 inches)
1984/05/15 Kokanee 71,500 Fry (0-3 inches)
1984/05/11 Kokanee 79,100 Fry (0-3 inches)
1983/10/28 Chinook Salmon - Fall 35,310 Fingerling (3-6 inches)
1983/08/02 Rainbow Trout 10,730 Fingerling (3-6 inches)
1983/07/07 Kokanee 147,900 Fry (0-3 inches)
1982/07/20 Chinook Salmon - Fall 13,512 Fingerling (3-6 inches)
1982/07/19 Chinook Salmon - Fall 11,750 Fingerling (3-6 inches)
1982/05/12 Rainbow Trout 3,750 Catchable (6+ inches)
1981/05/29 Rainbow Trout 1,875 Catchable (6+ inches)
1981/04/29 Rainbow Trout 1,876 Catchable (6+ inches)
1980/04/25 Rainbow Trout 3,750 Catchable (6+ inches)
1979/08/23 Bull Trout 17,160 Fry (0-3 inches)
1979/05/23 Rainbow Trout 1,875 Catchable (6+ inches)
1979/04/20 Rainbow Trout 1,875 Catchable (6+ inches)
1978/05/04 Rainbow Trout 11,750 Catchable (6+ inches)
1978/04/24 Rainbow Trout 12,000 Fingerling (3-6 inches)
1977/07/15 Rainbow Trout 12,520 Fingerling (3-6 inches)
1977/06/16 Rainbow Trout 24,600 Fingerling (3-6 inches)
1977/06/14 Rainbow Trout 40,690 Fingerling (3-6 inches)
1977/06/13 Rainbow Trout 25,575 Fingerling (3-6 inches)
1977/05/19 Rainbow Trout 130,650 Fry (0-3 inches)
1977/05/17 Rainbow Trout 7,525 Catchable (6+ inches)
1977/05/17 Rainbow Trout 44,000 Fingerling (3-6 inches)
1977/05/09 Rainbow Trout 66,000 Fingerling (3-6 inches)
1976/05/14 Rainbow Trout 3,750 Catchable (6+ inches)
1975/06/18 Smallmouth Bass 50,000 Fry (0-3 inches)
1975/06/09 Smallmouth Bass 850 Catchable (6+ inches)
1975/05/05 Rainbow Trout 3,120 Catchable (6+ inches)
1974/06/06 Smallmouth Bass 800 Fingerling (3-6 inches)
1974/04/26 Rainbow Trout 5,000 Catchable (6+ inches)
1974/04/03 Rainbow Trout 4,550 Catchable (6+ inches)
1974/03/28 Rainbow Trout 5,451 Catchable (6+ inches)
1973/06/07 Smallmouth Bass 472 Catchable (6+ inches)
1973/05/02 Rainbow Trout 5,000 Catchable (6+ inches)
1973/04/04 Rainbow Trout 10,000 Catchable (6+ inches)
1972/07/07 Smallmouth Bass 26,240 Fry (0-3 inches)
1972/06/25 Smallmouth Bass 500 Adults
1972/06/08 Rainbow Trout 2,000 Catchable (6+ inches)
1972/06/07 Rainbow Trout 18,250 Fingerling (3-6 inches)
1972/06/06 Rainbow Trout 12,000 Catchable (6+ inches)
1972/06/05 Rainbow Trout 6,000 Catchable (6+ inches)
1972/06/01 Rainbow Trout 1,750 Catchable (6+ inches)
1972/05/26 Rainbow Trout 6,000 Catchable (6+ inches)
1972/05/24 Rainbow Trout 3,000 Catchable (6+ inches)
1972/04/06 Rainbow Trout 5,000 Catchable (6+ inches)
1971/06/02 Rainbow Trout 2,122 Catchable (6+ inches)
1971/05/26 Rainbow Trout 2,999 Catchable (6+ inches)
1971/04/30 Rainbow Trout 2,916 Catchable (6+ inches)
1971/04/23 Rainbow Trout 3,000 Catchable (6+ inches)
1970/05/15 Rainbow Trout 2,700 Fingerling (3-6 inches)
1970/04/21 Rainbow Trout 8,338 Catchable (6+ inches)
1970/04/07 Coho Salmon 259,600 Fry (0-3 inches)
1969/05/23 Rainbow Trout 1,408 Adults
1969/05/14 Rainbow Trout 3,652 Catchable (6+ inches)
1969/05/07 Rainbow Trout 2,136 Catchable (6+ inches)
1969/04/23 Coho Salmon 140,000 Fry (0-3 inches)
1969/04/21 Rainbow Trout 2,288 Catchable (6+ inches)
1969/04/18 Rainbow Trout 2,500 Catchable (6+ inches)
1969/04/11 Coho Salmon 217,200 Fry (0-3 inches)
1969/04/11 Rainbow Trout 3,030 Catchable (6+ inches)
1968/05/03 Rainbow Trout 4,425 Catchable (6+ inches)
1968/04/18 Coho Salmon 117,700 Fry (0-3 inches)
1968/04/17 Coho Salmon 116,630 Fry (0-3 inches)
1968/04/16 Coho Salmon 117,000 Fry (0-3 inches)
1968/04/08 Kokanee 124,740 Fry (0-3 inches)
1968/03/06 Rainbow Trout 3,434 Catchable (6+ inches)
1968/03/05 Rainbow Trout 3,320 Catchable (6+ inches)
1968/03/04 Rainbow Trout 3,260 Catchable (6+ inches)
Source: IDFG Fish Stocking Database.

Licenses and Tags

Learn more about IDFG Licenses, Tags & Permits
 

Boat Ramps are managed by the US Forest Service.

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

Anderson Ranch Reservoir
  • Kokanee limit is 15 per day
Multiple Regional Bag Limits Apply
The Anderson Ranch Reservoir overlaps multiple regional boundaries. Every effort is made to use special rules to standardize the rules and bag limits across regional boundaries. Check the map to verify in what region you are fishing and follow the corresponding bag limits.
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