Horsethief Reservoir fishing

Fishing at Horsethief Reservoir is on a reservoir, stocked with Rainbow Trout, Cutthroat Trout, Cutbow, Brown Trout, Splake, and Kokanee Salmon. It is stocked about 5.3 times a year since 1968, most often in May and June. Species guides list dawn and dusk for Rainbow Trout and Kokanee Salmon and dawn, day, and dusk for Brown Trout.

Last stocked

June 17, 2026

Plants on record

311

Since 1968

Species recorded

6

Average size

5.4 in

Surface acres

258.5

Elevation

5,056 ft

Access and facts

Water type
reservoir
Nearest town
Cascade
Boat ramp
Yes
ADA accessible
Yes
Facilities
restrooms, camping, dock

A forested reservoir north of Cascade off the Warm Lake Highway, with a boat ramp, dock, and camping (camping is managed separately by Valley County). No motor restriction noted. Toilet and access are wheelchair accessible.

Sources: water_type , access.boat_ramp , access.ada , facilities , nearest_town , shore_notes , fishing_notes , angler_notes

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How Horsethief Reservoir is stocked

The first plant of the year usually falls in the third week of May. In 2026 it was April 23, 2026, earlier than usual.

No plants recorded in 1983.

About 15,871 reported fish per acre, 2nd most of 4 lakes in Valley County with both a fish count and a surface area.

Fischer Pond (5.4 mi), Ol' McDonald Pond (30 mi), Lowman Ponds (37.1 mi), and Meadow Creek Pond (38.7 mi) were stocked more recently. Fischer Pond is also stocked with Rainbow Trout, Ol' McDonald Pond is also stocked with Rainbow Trout and Cutthroat Trout, Lowman Ponds is also stocked with Rainbow Trout, and Meadow Creek Pond is also stocked with Rainbow Trout.

Fish at Horsethief Reservoir

Fishing Horsethief Reservoir is most likely to be for Rainbow Trout. Rainbow Trout accounts for 225 of 310 plants on record, ahead of Brown Trout and 4 more.

Rainbow Trout 225 plants
Plants
225 of 311
Last stocked
June 9, 2026
Average length
6.9 in

Seasons and rigs are on the Rainbow Trout guide.

Brown Trout 33 plants
Plants
33 of 311
Last stocked
June 16, 2026
Average length
4.5 in

Seasons and rigs are on the Brown Trout guide.

Cutbow 29 plants
Plants
29 of 311
Last stocked
September 20, 2001
Average length
3.4 in

Seasons and rigs are on the Cutbow guide.

Kokanee Salmon 12 plants
Plants
12 of 311
Last stocked
June 17, 2026
Average length
1.5 in

Seasons and rigs are on the Kokanee Salmon guide.

Cutthroat Trout 10 plants
Plants
10 of 311
Last stocked
September 19, 1996
Average length
2.4 in

Seasons and rigs are on the Cutthroat Trout guide.

Splake 1 plant
Plants
1 of 311
Last stocked
September 22, 1993
Average length
4.5 in

Seasons and rigs are on the Splake guide.

Fishing Horsethief Reservoir

Horsethief Reservoir in Valley County is 258.5 acres. It is identified as both a Recommended Fishing Water and a Family Fishing Water. Recommended game fish for Horsethief Reservoir include Brown Trout, Rainbow Trout, and Kokanee. The reservoir is stocked with species like Kokanee, Brown Trout, and Rainbow Trout - Triploid. Other species observed in surveys include Black Bullhead and Brook Trout, as well as Splake and Yellow Perch.

Sources: idfg.idaho.gov

What anglers say

According to the Idaho Fishing Planner, Horsethief Reservoir "has everything for a memorable fishing weekend" including a beautiful lake, good fishing, and camping.

Fish stocked per year

  • 110,7201968
  • 37,8301969
  • 60,0091970
  • 43,4101971
  • 73,8691972
  • 74,9761973
  • 88,6751974
  • 83,0541975
  • 87,8601976
  • 74,6731977
  • 35,1641978
  • 77,5321979
  • 51,9901980
  • 70,9151981
  • 105,2651982
  • 65,7251984
  • 70,8401985
  • 76,7501986
  • 76,3951987
  • 104,9401988
  • 110,3101989
  • 117,5051990
  • 117,0151991
  • 119,9601992
  • 120,2441993
  • 97,2591994
  • 10,0001995
  • 122,9001996
  • 92,3721997
  • 69,2951998
  • 25,0531999
  • 81,9482000
  • 74,2442001
  • 40,1702002
  • 46,8762003
  • 39,8702004
  • 46,9152005
  • 35,5002006
  • 54,8722007
  • 71,6372008
  • 52,4522009
  • 51,6792010
  • 83,5582011
  • 55,1712012
  • 67,6962013
  • 55,1262014
  • 14,9882015
  • 78,2692016
  • 48,7752017
  • 61,0922018
  • 62,0232019
  • 63,7922020
  • 59,7232021
  • 95,4982022
  • 60,4662023
  • 62,8292024
  • 109,2522025
  • 55,6292026

Stocking history

Showing 15 of 311 plants Showing 311 plants

Source: Idaho Department of Fish and Game.
Date Species Quantity Avg. length Source
June 17, 2026 Kokanee Salmon 10,588 1.5 in report
June 16, 2026 Brown Trout 13,456 4.5 in report
June 9, 2026 Rainbow Trout 7,528 – report
June 3, 2026 Rainbow Trout 9,672 4.5 in report
April 23, 2026 Rainbow Trout 14,385 – report
September 16, 2025 Rainbow Trout 7,560 – report
June 23, 2025 Brown Trout 10,070 4.5 in report
June 19, 2025 Kokanee Salmon 10,699 1.5 in report
June 3, 2025 Rainbow Trout 7,710 – report
May 19, 2025 Rainbow Trout 14,783 13 in report
May 9, 2025 Rainbow Trout 58,430 4.5 in report
September 18, 2024 Rainbow Trout 7,496 13 in report
June 20, 2024 Rainbow Trout 7,557 13 in report
June 18, 2024 Brown Trout 14,400 4.5 in report
June 13, 2024 Kokanee Salmon 8,481 1.5 in report
May 29, 2024 Rainbow Trout 9,815 4.5 in report
May 29, 2024 Rainbow Trout 6,400 13 in report
May 28, 2024 Rainbow Trout 5,120 13 in report
April 25, 2024 Rainbow Trout 3,560 13 in report
September 25, 2023 Rainbow Trout 7,508 13 in report
June 27, 2023 Rainbow Trout 7,511 – report
June 27, 2023 Brown Trout 10,088 4.5 in report
June 15, 2023 Kokanee Salmon 10,000 1.5 in report
June 1, 2023 Rainbow Trout 8,000 13 in report
May 12, 2023 Rainbow Trout 10,330 4.5 in report
May 12, 2023 Rainbow Trout 3,500 13 in report
May 11, 2023 Rainbow Trout 3,529 13 in report
October 5, 2022 Rainbow Trout 7,500 13 in report
July 14, 2022 Rainbow Trout 7,500 13 in report
June 16, 2022 Kokanee Salmon 35,340 1.5 in report
June 16, 2022 Kokanee Salmon 10,027 1.5 in report
June 10, 2022 Rainbow Trout 10,121 4.5 in report
June 10, 2022 Brown Trout 9,998 4.5 in report
May 31, 2022 Rainbow Trout 8,006 13 in report
May 13, 2022 Rainbow Trout 150 – report
May 13, 2022 Rainbow Trout 6,856 13 in report
September 28, 2021 Rainbow Trout 3,780 13 in report
September 23, 2021 Rainbow Trout 3,780 13 in report
June 17, 2021 Rainbow Trout 7,378 13 in report
June 17, 2021 Kokanee Salmon 9,540 1.5 in report
May 27, 2021 Rainbow Trout 3,060 13 in report
May 26, 2021 Rainbow Trout 10,036 4.5 in report
May 26, 2021 Brown Trout 10,143 4.5 in report
May 21, 2021 Rainbow Trout 4,698 13 in report
May 20, 2021 Rainbow Trout 3,306 13 in report
May 19, 2021 Rainbow Trout 4,002 13 in report
October 1, 2020 Rainbow Trout 7,473 13 in report
September 15, 2020 Rainbow Trout 1,398 – report
June 18, 2020 Kokanee Salmon 3,091 1.5 in report
June 3, 2020 Rainbow Trout 8,316 13 in report
May 27, 2020 Rainbow Trout 13,832 4.5 in report
May 27, 2020 Brown Trout 12,079 4.5 in report
May 18, 2020 Rainbow Trout 9,217 13 in report
May 14, 2020 Rainbow Trout 2,804 – report
May 14, 2020 – 5,582 – report
September 17, 2019 Rainbow Trout 8,550 13 in report
June 20, 2019 Kokanee Salmon 2,993 1.5 in report
June 13, 2019 Rainbow Trout 9,905 4.5 in report
June 13, 2019 Brown Trout 13,028 4.5 in report
June 5, 2019 Rainbow Trout 12,544 – report
May 17, 2019 Rainbow Trout 9,792 13 in report
May 16, 2019 Rainbow Trout 150 13 in report
May 16, 2019 Rainbow Trout 5,061 13 in report
September 21, 2018 Rainbow Trout 961 13 in report
September 20, 2018 Rainbow Trout 16,223 – report
September 20, 2018 Rainbow Trout 3,146 13 in report
June 7, 2018 Rainbow Trout 10,582 4.5 in report
June 7, 2018 Brown Trout 10,178 4.5 in report
June 6, 2018 Rainbow Trout 5,001 13 in report
June 6, 2018 Kokanee Salmon 3,000 1.5 in report
May 22, 2018 Rainbow Trout 4,238 13 in report
May 17, 2018 Rainbow Trout 3,966 13 in report
May 16, 2018 Rainbow Trout 400 – report
May 16, 2018 Rainbow Trout 3,397 13 in report
September 19, 2017 Rainbow Trout 3,017 – report
September 7, 2017 Rainbow Trout 6,566 – report
June 20, 2017 Rainbow Trout 9,981 1.5 in report
June 20, 2017 Brown Trout 10,656 4.5 in report
June 16, 2017 Kokanee Salmon 3,000 1.5 in report
June 6, 2017 Rainbow Trout 3,045 – report
May 23, 2017 Rainbow Trout 4,006 – report
May 22, 2017 Rainbow Trout 8,504 – report
November 2, 2016 Rainbow Trout 600 – report
September 22, 2016 Rainbow Trout 4,218 – report
June 30, 2016 Rainbow Trout 10,899 – report
June 10, 2016 Kokanee Salmon 5,085 1.5 in report
June 9, 2016 Rainbow Trout 9,359 4.5 in report
June 9, 2016 Brown Trout 30,564 4.5 in report
June 8, 2016 Rainbow Trout 2,560 – report
May 26, 2016 Rainbow Trout 3,180 – report
May 25, 2016 Rainbow Trout 5,724 – report
May 4, 2016 Rainbow Trout 6,080 – report
June 11, 2015 Rainbow Trout 3,000 – report
May 20, 2015 Rainbow Trout 11,988 – report
September 24, 2014 Rainbow Trout 3,430 – report
September 23, 2014 Rainbow Trout 6,400 – report
June 11, 2014 Rainbow Trout 10,014 4.5 in report
June 4, 2014 Rainbow Trout 4,992 – report
June 4, 2014 Brown Trout 10,010 4.5 in report
May 16, 2014 Rainbow Trout 900 – report
May 16, 2014 Rainbow Trout 19,380 – report
October 2, 2013 Rainbow Trout 5,350 – report
September 20, 2013 Rainbow Trout 5,250 – report
September 19, 2013 Rainbow Trout 3,650 – report
August 28, 2013 Rainbow Trout 18,150 – report
June 26, 2013 Rainbow Trout 2,056 – report
June 26, 2013 Brown Trout 10,038 4.5 in report
June 20, 2013 Rainbow Trout 7,204 – report
May 23, 2013 Rainbow Trout 8,910 – report
May 16, 2013 Rainbow Trout 7,088 – report
October 11, 2012 Rainbow Trout 8,379 – report
June 26, 2012 Brown Trout 9,782 4.5 in report
June 11, 2012 Rainbow Trout 6,040 – report
May 23, 2012 Rainbow Trout 9,982 4.5 in report
May 23, 2012 Rainbow Trout 11,100 – report
May 22, 2012 Rainbow Trout 9,888 – report
September 22, 2011 Rainbow Trout 12,100 – report
September 19, 2011 Rainbow Trout 5,040 – report
June 8, 2011 Rainbow Trout 13,000 4.5 in report
June 8, 2011 Rainbow Trout 12,400 – report
June 1, 2011 Brown Trout 24,450 4.5 in report
May 19, 2011 Rainbow Trout 1,198 – report
May 17, 2011 Rainbow Trout 15,370 – report
September 16, 2010 Rainbow Trout 5,500 – report
June 30, 2010 Rainbow Trout 11,060 4.5 in report
June 30, 2010 Rainbow Trout 13,110 – report
May 24, 2010 Rainbow Trout 11,825 – report
May 20, 2010 Brown Trout 10,184 4.5 in report
September 9, 2009 Rainbow Trout 5,060 – report
June 9, 2009 Rainbow Trout 10,680 4.5 in report
June 9, 2009 Rainbow Trout 5,152 – report
May 19, 2009 Brown Trout 10,140 4.5 in report
May 18, 2009 Rainbow Trout 21,420 – report
October 6, 2008 Rainbow Trout 4,950 – report
June 4, 2008 Rainbow Trout 10,564 – report
May 28, 2008 Brown Trout 10,170 4.5 in report
May 19, 2008 Rainbow Trout 25,800 4.5 in report
May 19, 2008 Rainbow Trout 6,718 – report
May 14, 2008 Rainbow Trout 13,435 – report
September 13, 2007 Rainbow Trout 5,170 – report
September 13, 2007 Brown Trout 10,004 4.5 in report
June 12, 2007 Rainbow Trout 10,650 4.5 in report
June 12, 2007 Rainbow Trout 5,100 – report
May 9, 2007 Rainbow Trout 19,840 – report
May 7, 2007 Brown Trout 4,108 – report
June 20, 2006 Rainbow Trout 15,200 – report
May 24, 2006 Rainbow Trout 20,300 – report
September 21, 2005 Rainbow Trout 4,550 – report
September 21, 2005 Brown Trout 6,935 – report
June 14, 2005 Rainbow Trout 10,080 4.5 in report
June 14, 2005 Rainbow Trout 2,600 – report
May 16, 2005 Rainbow Trout 22,750 – report
September 16, 2004 Rainbow Trout 4,800 – report
June 8, 2004 Rainbow Trout 10,010 4.5 in report
June 8, 2004 Rainbow Trout 8,960 – report
May 3, 2004 Rainbow Trout 16,100 – report
September 11, 2003 Rainbow Trout 17,010 – report
May 21, 2003 Rainbow Trout 5,332 4.5 in report
May 21, 2003 Rainbow Trout 19,200 – report
March 21, 2003 Rainbow Trout 5,334 4.5 in report
September 18, 2002 Rainbow Trout 5,000 – report
June 24, 2002 Rainbow Trout 10,150 4.5 in report
June 24, 2002 Rainbow Trout 6,820 – report
May 22, 2002 Rainbow Trout 18,200 – report
September 20, 2001 Cutbow 10,000 4.5 in report
September 20, 2001 Cutbow 10,000 4.5 in report
September 13, 2001 Rainbow Trout 22,562 – report
June 26, 2001 Rainbow Trout 5,850 4.5 in report
June 4, 2001 Rainbow Trout 8,492 4.5 in report
June 4, 2001 Rainbow Trout 7,200 – report
May 9, 2001 Rainbow Trout 10,140 – report
September 27, 2000 Cutbow 10,080 1.5 in report
September 27, 2000 Cutbow 10,080 1.5 in report
September 20, 2000 Rainbow Trout 5,670 – report
July 26, 2000 Brown Trout 14,860 – report
May 23, 2000 Rainbow Trout 450 – report
May 23, 2000 Rainbow Trout 198 – report
May 17, 2000 Rainbow Trout 4,800 – report
May 17, 2000 Rainbow Trout 14,850 4.5 in report
May 16, 2000 Rainbow Trout 9,900 – report
May 12, 2000 Rainbow Trout 8,960 – report
April 28, 2000 Rainbow Trout 2,100 – report
August 31, 1999 Rainbow Trout 5,070 – report
June 28, 1999 Rainbow Trout 10,038 – report
May 27, 1999 Rainbow Trout 9,945 – report
September 16, 1998 Rainbow Trout 8,000 – report
September 3, 1998 Cutbow 10,000 4.5 in report
September 3, 1998 Cutbow 10,000 4.5 in report
June 22, 1998 Rainbow Trout 9,900 – report
May 15, 1998 Brown Trout 5,080 – report
May 14, 1998 Rainbow Trout 16,275 4.5 in report
May 5, 1998 Rainbow Trout 10,040 – report
September 15, 1997 Rainbow Trout 5,250 – report
September 4, 1997 Cutbow 10,500 1.5 in report
September 4, 1997 Cutbow 10,500 1.5 in report
May 22, 1997 Rainbow Trout 33,330 4.5 in report
May 22, 1997 Brown Trout 8,190 4.5 in report
May 16, 1997 Brown Trout 1,640 – report
May 15, 1997 Brown Trout 3,362 – report
May 5, 1997 Rainbow Trout 19,600 – report
September 27, 1996 Rainbow Trout 10,400 1.5 in report
September 27, 1996 Cutbow 10,000 1.5 in report
September 27, 1996 Cutbow 10,000 1.5 in report
September 19, 1996 Cutthroat Trout 10,000 1.5 in report
July 15, 1996 Rainbow Trout 10,000 1.5 in report
July 11, 1996 Rainbow Trout 12,080 4.5 in report
July 11, 1996 Rainbow Trout 2,800 – report
June 28, 1996 Rainbow Trout 7,260 – report
May 31, 1996 Rainbow Trout 16,500 – report
May 23, 1996 Rainbow Trout 3,600 – report
May 17, 1996 Brown Trout 5,000 – report
May 15, 1996 Rainbow Trout 25,260 4.5 in report
May 24, 1995 Rainbow Trout 10,000 – report
October 13, 1994 Rainbow Trout 5,000 – report
October 13, 1994 Rainbow Trout 250 – report
September 26, 1994 Cutbow 22,000 4.5 in report
September 26, 1994 Cutbow 22,000 4.5 in report
May 25, 1994 Rainbow Trout 31,163 4.5 in report
May 25, 1994 Brown Trout 6,703 4.5 in report
May 12, 1994 Rainbow Trout 10,143 – report
September 22, 1993 Splake 10,000 4.5 in report
September 16, 1993 Cutbow 25,200 4.5 in report
September 16, 1993 Cutbow 25,200 4.5 in report
June 15, 1993 Brown Trout 5,100 4.5 in report
June 1, 1993 Rainbow Trout 44,544 4.5 in report
May 24, 1993 Rainbow Trout 10,200 4.5 in report
September 10, 1992 Cutbow 25,000 4.5 in report
September 10, 1992 Cutbow 25,000 4.5 in report
August 25, 1992 Brown Trout 5,000 4.5 in report
May 26, 1992 Rainbow Trout 300 – report
May 15, 1992 Rainbow Trout 10,000 – report
May 7, 1992 Rainbow Trout 54,660 4.5 in report
September 25, 1991 Cutbow 25,200 4.5 in report
September 25, 1991 Cutbow 25,200 4.5 in report
September 9, 1991 Rainbow Trout 900 – report
July 24, 1991 Rainbow Trout 550 – report
June 18, 1991 Brown Trout 5,175 4.5 in report
May 29, 1991 Rainbow Trout 50,000 4.5 in report
May 22, 1991 Rainbow Trout 3,015 – report
May 21, 1991 Rainbow Trout 3,045 – report
May 16, 1991 Rainbow Trout 3,930 – report
October 25, 1990 Rainbow Trout 200 – report
October 15, 1990 Cutbow 26,250 4.5 in report
October 15, 1990 Cutbow 26,250 4.5 in report
September 21, 1990 Brown Trout 5,070 4.5 in report
June 8, 1990 Rainbow Trout 2,655 – report
May 17, 1990 Rainbow Trout 5,000 – report
May 10, 1990 Rainbow Trout 52,080 4.5 in report
October 18, 1989 Cutbow 25,145 4.5 in report
October 18, 1989 Cutbow 25,145 4.5 in report
June 23, 1989 Rainbow Trout 50,020 4.5 in report
May 10, 1989 Rainbow Trout 10,000 – report
October 26, 1988 Brown Trout 4,140 – report
September 27, 1988 Cutbow 25,200 4.5 in report
September 27, 1988 Cutbow 25,200 4.5 in report
June 14, 1988 Rainbow Trout 50,400 4.5 in report
September 17, 1987 Cutthroat Trout 25,575 1.5 in report
June 3, 1987 Rainbow Trout 18,480 4.5 in report
June 1, 1987 Rainbow Trout 32,340 4.5 in report
August 12, 1986 Cutthroat Trout 25,000 1.5 in report
July 8, 1986 Rainbow Trout 10,500 4.5 in report
May 29, 1986 Rainbow Trout 20,000 4.5 in report
May 28, 1986 Rainbow Trout 21,250 4.5 in report
August 16, 1985 Cutthroat Trout 25,720 1.5 in report
July 1, 1985 Rainbow Trout 14,900 1.5 in report
July 1, 1985 Rainbow Trout 30,220 4.5 in report
July 26, 1984 Rainbow Trout 20,125 4.5 in report
July 18, 1984 Rainbow Trout 31,200 4.5 in report
May 18, 1984 Rainbow Trout 7,200 – report
May 17, 1984 Rainbow Trout 7,200 – report
July 2, 1982 Rainbow Trout 4,800 – report
June 1, 1982 Rainbow Trout 28,125 1.5 in report
June 1, 1982 Cutthroat Trout 9,990 4.5 in report
May 24, 1982 Cutthroat Trout 35,000 4.5 in report
May 19, 1982 Rainbow Trout 21,850 4.5 in report
May 19, 1982 Cutthroat Trout 5,500 4.5 in report
September 23, 1981 Cutbow 6,969 1.5 in report
September 23, 1981 Cutbow 6,969 1.5 in report
July 21, 1981 Rainbow Trout 10,140 – report
June 16, 1981 Rainbow Trout 13,237 4.5 in report
May 15, 1981 Rainbow Trout 33,600 4.5 in report
July 14, 1980 Rainbow Trout 2,280 – report
May 6, 1980 Rainbow Trout 30,000 1.5 in report
May 6, 1980 Rainbow Trout 19,710 4.5 in report
July 30, 1979 Rainbow Trout 2,040 – report
June 6, 1979 Rainbow Trout 25,092 4.5 in report
May 1, 1979 Rainbow Trout 50,400 4.5 in report
May 3, 1978 Rainbow Trout 35,164 1.5 in report
October 12, 1977 Cutbow 13,364 1.5 in report
June 23, 1977 Cutthroat Trout 11,284 1.5 in report
April 21, 1977 Rainbow Trout 50,025 4.5 in report
July 22, 1976 Cutbow 23,980 1.5 in report
July 22, 1976 Cutbow 23,980 1.5 in report
May 3, 1976 Rainbow Trout 11,865 1.5 in report
May 3, 1976 Rainbow Trout 28,035 4.5 in report
September 24, 1975 Cutthroat Trout 8,086 1.5 in report
May 21, 1975 Rainbow Trout 74,968 4.5 in report
September 5, 1974 Cutthroat Trout 14,210 1.5 in report
May 13, 1974 Rainbow Trout 74,465 4.5 in report
April 24, 1973 Rainbow Trout 74,976 1.5 in report
April 27, 1972 Rainbow Trout 73,869 1.5 in report
May 17, 1971 Rainbow Trout 43,410 1.5 in report
June 16, 1970 Rainbow Trout 1,890 – report
June 1, 1970 Rainbow Trout 3,360 – report
May 19, 1970 Rainbow Trout 49,959 1.5 in report
May 19, 1970 Rainbow Trout 4,800 – report
May 22, 1969 Rainbow Trout 4,600 – report
May 15, 1969 Rainbow Trout 27,230 1.5 in report
May 14, 1969 Rainbow Trout 6,000 – report
May 31, 1968 Rainbow Trout 100,320 1.5 in report
May 20, 1968 Rainbow Trout 10,400 – report
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Species stocked here

Depth-by-season, top lures, and bait notes for each species stocked here are on its own species guide, linked above.

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