Horsethief Reservoir fishing

Horsethief Reservoir fishing is stocked with Rainbow Trout, Cutthroat Trout, Cutbow, Brown Trout, Splake, and Kokanee Salmon on a reservoir. Also recorded: Black Bullhead, Brook Trout, and Yellow Perch. 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, dawn, day, and dusk for Brown Trout, Brook Trout, and Yellow Perch, and dusk and night for Black Bullhead.

AI-generated illustration, not a photo of this lake
Last stocked
October 20, 2026
· Rainbow Trout
Plants on record
313
Since 1968
Species stocked
6 (+3 also recorded)
Average size
5.4 in
Surface acres
258.5
Elevation
5,056 ft

Fish at Horsethief Reservoir

6 stocked · 3 confirmed present

Rainbow Trout Stocked · 226 plants · last September 16, 2026 Best: dawn, dusk

Last stocked September 16, 2026 · avg 7 in · 226 plants

Best: dawn, dusk

Rainbow Trout species guide
Brown Trout Stocked · 33 plants · last June 16, 2026 Best: dawn, day, dusk

Last stocked June 16, 2026 · avg 4.5 in · 33 plants

Best: dawn, day, dusk

Brown Trout species guide
Cutbow Stocked · 29 plants · last September 20, 2001

Last stocked September 20, 2001 · avg 3.4 in · 29 plants

Cutbow species guide
Kokanee Salmon Stocked · 12 plants · last June 17, 2026 Best: dawn, dusk

Last stocked June 17, 2026 · avg 1.5 in · 12 plants

Best: dawn, dusk

Kokanee Salmon species guide
Cutthroat Trout Stocked · 10 plants · last September 19, 1996

Last stocked September 19, 1996 · avg 2.4 in · 10 plants

Cutthroat Trout species guide
Splake Stocked · 1 plant · last September 22, 1993

Last stocked September 22, 1993 · avg 4.5 in · 1 plant

Splake species guide

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. (idfg.idaho.gov, accessed September 22, 2026)

Drafted by AI from the cited sources and checked before publishing.

How Horsethief Reservoir is stocked

Source: Idaho Department of Fish and Game.

No plants recorded in 1983.

Fish stocked in 1968

110,720

Fish stocked in 1969

37,830

Fish stocked in 1970

60,009

Fish stocked in 1971

43,410

Fish stocked in 1972

73,869

Fish stocked in 1973

74,976

Fish stocked in 1974

88,675

Fish stocked in 1975

83,054

Fish stocked in 1976

87,860

Fish stocked in 1977

74,673

Fish stocked in 1978

35,164

Fish stocked in 1979

77,532

Fish stocked in 1980

51,990

Fish stocked in 1981

70,915

Fish stocked in 1982

105,265

Fish stocked in 1984

65,725

Fish stocked in 1985

70,840

Fish stocked in 1986

76,750

Fish stocked in 1987

76,395

Fish stocked in 1988

104,940

Fish stocked in 1989

110,310

Fish stocked in 1990

117,505

Fish stocked in 1991

117,015

Fish stocked in 1992

119,960

Fish stocked in 1993

120,244

Fish stocked in 1994

97,259

Fish stocked in 1995

10,000

Fish stocked in 1996

122,900

Fish stocked in 1997

92,372

Fish stocked in 1998

69,295

Fish stocked in 1999

25,053

Fish stocked in 2000

81,948

Fish stocked in 2001

74,244

Fish stocked in 2002

40,170

Fish stocked in 2003

46,876

Fish stocked in 2004

39,870

Fish stocked in 2005

46,915

Fish stocked in 2006

35,500

Fish stocked in 2007

54,872

Fish stocked in 2008

71,637

Fish stocked in 2009

52,452

Fish stocked in 2010

51,679

Fish stocked in 2011

83,558

Fish stocked in 2012

55,171

Fish stocked in 2013

67,696

Fish stocked in 2014

55,126

Fish stocked in 2015

14,988

Fish stocked in 2016

78,269

Fish stocked in 2017

48,775

Fish stocked in 2018

61,092

Fish stocked in 2019

62,023

Fish stocked in 2020

63,792

Fish stocked in 2021

59,723

Fish stocked in 2022

95,498

Fish stocked in 2023

60,466

Fish stocked in 2024

62,829

Fish stocked in 2025

109,252

Fish stocked in 2026

63,155

Stocking history

Source: Idaho Department of Fish and Game.
Date Species Quantity Avg. length Source
October 20, 2026Rainbow Trout8,4364.5 inreport
September 16, 2026Rainbow Trout7,52613 inreport
June 17, 2026Kokanee Salmon10,5881.5 inreport
June 16, 2026Brown Trout13,4564.5 inreport
June 9, 2026Rainbow Trout7,528–report
June 3, 2026Rainbow Trout9,6724.5 inreport
April 23, 2026Rainbow Trout14,385–report
September 16, 2025Rainbow Trout7,560–report
June 23, 2025Brown Trout10,0704.5 inreport
June 19, 2025Kokanee Salmon10,6991.5 inreport
June 3, 2025Rainbow Trout7,710–report
May 19, 2025Rainbow Trout14,78313 inreport
May 9, 2025Rainbow Trout58,4304.5 inreport
September 18, 2024Rainbow Trout7,49613 inreport
June 20, 2024Rainbow Trout7,55713 inreport
June 18, 2024Brown Trout14,4004.5 inreport
June 13, 2024Kokanee Salmon8,4811.5 inreport
May 29, 2024Rainbow Trout9,8154.5 inreport
May 29, 2024Rainbow Trout6,40013 inreport
May 28, 2024Rainbow Trout5,12013 inreport
April 25, 2024Rainbow Trout3,56013 inreport
September 25, 2023Rainbow Trout7,50813 inreport
June 27, 2023Rainbow Trout7,511–report
June 27, 2023Brown Trout10,0884.5 inreport
June 15, 2023Kokanee Salmon10,0001.5 inreport
June 1, 2023Rainbow Trout8,00013 inreport
May 12, 2023Rainbow Trout10,3304.5 inreport
May 12, 2023Rainbow Trout3,50013 inreport
May 11, 2023Rainbow Trout3,52913 inreport
October 5, 2022Rainbow Trout7,50013 inreport
July 14, 2022Rainbow Trout7,50013 inreport
June 16, 2022Kokanee Salmon35,3401.5 inreport
June 16, 2022Kokanee Salmon10,0271.5 inreport
June 10, 2022Rainbow Trout10,1214.5 inreport
June 10, 2022Brown Trout9,9984.5 inreport
May 31, 2022Rainbow Trout8,00613 inreport
May 13, 2022Rainbow Trout150–report
May 13, 2022Rainbow Trout6,85613 inreport
September 28, 2021Rainbow Trout3,78013 inreport
September 23, 2021Rainbow Trout3,78013 inreport
June 17, 2021Rainbow Trout7,37813 inreport
June 17, 2021Kokanee Salmon9,5401.5 inreport
May 27, 2021Rainbow Trout3,06013 inreport
May 26, 2021Rainbow Trout10,0364.5 inreport
May 26, 2021Brown Trout10,1434.5 inreport
May 21, 2021Rainbow Trout4,69813 inreport
May 20, 2021Rainbow Trout3,30613 inreport
May 19, 2021Rainbow Trout4,00213 inreport
October 1, 2020Rainbow Trout7,47313 inreport
September 15, 2020Rainbow Trout1,398–report
June 18, 2020Kokanee Salmon3,0911.5 inreport
June 3, 2020Rainbow Trout8,31613 inreport
May 27, 2020Rainbow Trout13,8324.5 inreport
May 27, 2020Brown Trout12,0794.5 inreport
May 18, 2020Rainbow Trout9,21713 inreport
May 14, 2020Rainbow Trout2,804–report
May 14, 2020–5,582–report
September 17, 2019Rainbow Trout8,55013 inreport
June 20, 2019Kokanee Salmon2,9931.5 inreport
June 13, 2019Rainbow Trout9,9054.5 inreport
June 13, 2019Brown Trout13,0284.5 inreport
June 5, 2019Rainbow Trout12,544–report
May 17, 2019Rainbow Trout9,79213 inreport
May 16, 2019Rainbow Trout15013 inreport
May 16, 2019Rainbow Trout5,06113 inreport
September 21, 2018Rainbow Trout96113 inreport
September 20, 2018Rainbow Trout16,223–report
September 20, 2018Rainbow Trout3,14613 inreport
June 7, 2018Rainbow Trout10,5824.5 inreport
June 7, 2018Brown Trout10,1784.5 inreport
June 6, 2018Rainbow Trout5,00113 inreport
June 6, 2018Kokanee Salmon3,0001.5 inreport
May 22, 2018Rainbow Trout4,23813 inreport
May 17, 2018Rainbow Trout3,96613 inreport
May 16, 2018Rainbow Trout400–report
May 16, 2018Rainbow Trout3,39713 inreport
September 19, 2017Rainbow Trout3,017–report
September 7, 2017Rainbow Trout6,566–report
June 20, 2017Rainbow Trout9,9811.5 inreport
June 20, 2017Brown Trout10,6564.5 inreport
June 16, 2017Kokanee Salmon3,0001.5 inreport
June 6, 2017Rainbow Trout3,045–report
May 23, 2017Rainbow Trout4,006–report
May 22, 2017Rainbow Trout8,504–report
November 2, 2016Rainbow Trout600–report
September 22, 2016Rainbow Trout4,218–report
June 30, 2016Rainbow Trout10,899–report
June 10, 2016Kokanee Salmon5,0851.5 inreport
June 9, 2016Rainbow Trout9,3594.5 inreport
June 9, 2016Brown Trout30,5644.5 inreport
June 8, 2016Rainbow Trout2,560–report
May 26, 2016Rainbow Trout3,180–report
May 25, 2016Rainbow Trout5,724–report
May 4, 2016Rainbow Trout6,080–report
June 11, 2015Rainbow Trout3,000–report
May 20, 2015Rainbow Trout11,988–report
September 24, 2014Rainbow Trout3,430–report
September 23, 2014Rainbow Trout6,400–report
June 11, 2014Rainbow Trout10,0144.5 inreport
June 4, 2014Rainbow Trout4,992–report
June 4, 2014Brown Trout10,0104.5 inreport
May 16, 2014Rainbow Trout900–report
May 16, 2014Rainbow Trout19,380–report
October 2, 2013Rainbow Trout5,350–report
September 20, 2013Rainbow Trout5,250–report
September 19, 2013Rainbow Trout3,650–report
August 28, 2013Rainbow Trout18,150–report
June 26, 2013Rainbow Trout2,056–report
June 26, 2013Brown Trout10,0384.5 inreport
June 20, 2013Rainbow Trout7,204–report
May 23, 2013Rainbow Trout8,910–report
May 16, 2013Rainbow Trout7,088–report
October 11, 2012Rainbow Trout8,379–report
June 26, 2012Brown Trout9,7824.5 inreport
June 11, 2012Rainbow Trout6,040–report
May 23, 2012Rainbow Trout9,9824.5 inreport
May 23, 2012Rainbow Trout11,100–report
May 22, 2012Rainbow Trout9,888–report
September 22, 2011Rainbow Trout12,100–report
September 19, 2011Rainbow Trout5,040–report
June 8, 2011Rainbow Trout13,0004.5 inreport
June 8, 2011Rainbow Trout12,400–report
June 1, 2011Brown Trout24,4504.5 inreport
May 19, 2011Rainbow Trout1,198–report
May 17, 2011Rainbow Trout15,370–report
September 16, 2010Rainbow Trout5,500–report
June 30, 2010Rainbow Trout11,0604.5 inreport
June 30, 2010Rainbow Trout13,110–report
May 24, 2010Rainbow Trout11,825–report
May 20, 2010Brown Trout10,1844.5 inreport
September 9, 2009Rainbow Trout5,060–report
June 9, 2009Rainbow Trout10,6804.5 inreport
June 9, 2009Rainbow Trout5,152–report
May 19, 2009Brown Trout10,1404.5 inreport
May 18, 2009Rainbow Trout21,420–report
October 6, 2008Rainbow Trout4,950–report
June 4, 2008Rainbow Trout10,564–report
May 28, 2008Brown Trout10,1704.5 inreport
May 19, 2008Rainbow Trout25,8004.5 inreport
May 19, 2008Rainbow Trout6,718–report
May 14, 2008Rainbow Trout13,435–report
September 13, 2007Rainbow Trout5,170–report
September 13, 2007Brown Trout10,0044.5 inreport
June 12, 2007Rainbow Trout10,6504.5 inreport
June 12, 2007Rainbow Trout5,100–report
May 9, 2007Rainbow Trout19,840–report
May 7, 2007Brown Trout4,108–report
June 20, 2006Rainbow Trout15,200–report
May 24, 2006Rainbow Trout20,300–report
September 21, 2005Rainbow Trout4,550–report
September 21, 2005Brown Trout6,935–report
June 14, 2005Rainbow Trout10,0804.5 inreport
June 14, 2005Rainbow Trout2,600–report
May 16, 2005Rainbow Trout22,750–report
September 16, 2004Rainbow Trout4,800–report
June 8, 2004Rainbow Trout10,0104.5 inreport
June 8, 2004Rainbow Trout8,960–report
May 3, 2004Rainbow Trout16,100–report
September 11, 2003Rainbow Trout17,010–report
May 21, 2003Rainbow Trout5,3324.5 inreport
May 21, 2003Rainbow Trout19,200–report
March 21, 2003Rainbow Trout5,3344.5 inreport
September 18, 2002Rainbow Trout5,000–report
June 24, 2002Rainbow Trout10,1504.5 inreport
June 24, 2002Rainbow Trout6,820–report
May 22, 2002Rainbow Trout18,200–report
September 20, 2001Cutbow10,0004.5 inreport
September 20, 2001Cutbow10,0004.5 inreport
September 13, 2001Rainbow Trout22,562–report
June 26, 2001Rainbow Trout5,8504.5 inreport
June 4, 2001Rainbow Trout8,4924.5 inreport
June 4, 2001Rainbow Trout7,200–report
May 9, 2001Rainbow Trout10,140–report
September 27, 2000Cutbow10,0801.5 inreport
September 27, 2000Cutbow10,0801.5 inreport
September 20, 2000Rainbow Trout5,670–report
July 26, 2000Brown Trout14,860–report
May 23, 2000Rainbow Trout450–report
May 23, 2000Rainbow Trout198–report
May 17, 2000Rainbow Trout4,800–report
May 17, 2000Rainbow Trout14,8504.5 inreport
May 16, 2000Rainbow Trout9,900–report
May 12, 2000Rainbow Trout8,960–report
April 28, 2000Rainbow Trout2,100–report
August 31, 1999Rainbow Trout5,070–report
June 28, 1999Rainbow Trout10,038–report
May 27, 1999Rainbow Trout9,945–report
September 16, 1998Rainbow Trout8,000–report
September 3, 1998Cutbow10,0004.5 inreport
September 3, 1998Cutbow10,0004.5 inreport
June 22, 1998Rainbow Trout9,900–report
May 15, 1998Brown Trout5,080–report
May 14, 1998Rainbow Trout16,2754.5 inreport
May 5, 1998Rainbow Trout10,040–report
September 15, 1997Rainbow Trout5,250–report
September 4, 1997Cutbow10,5001.5 inreport
September 4, 1997Cutbow10,5001.5 inreport
May 22, 1997Rainbow Trout33,3304.5 inreport
May 22, 1997Brown Trout8,1904.5 inreport
May 16, 1997Brown Trout1,640–report
May 15, 1997Brown Trout3,362–report
May 5, 1997Rainbow Trout19,600–report
September 27, 1996Rainbow Trout10,4001.5 inreport
September 27, 1996Cutbow10,0001.5 inreport
September 27, 1996Cutbow10,0001.5 inreport
September 19, 1996Cutthroat Trout10,0001.5 inreport
July 15, 1996Rainbow Trout10,0001.5 inreport
July 11, 1996Rainbow Trout12,0804.5 inreport
July 11, 1996Rainbow Trout2,800–report
June 28, 1996Rainbow Trout7,260–report
May 31, 1996Rainbow Trout16,500–report
May 23, 1996Rainbow Trout3,600–report
May 17, 1996Brown Trout5,000–report
May 15, 1996Rainbow Trout25,2604.5 inreport
May 24, 1995Rainbow Trout10,000–report
October 13, 1994Rainbow Trout5,000–report
October 13, 1994Rainbow Trout250–report
September 26, 1994Cutbow22,0004.5 inreport
September 26, 1994Cutbow22,0004.5 inreport
May 25, 1994Rainbow Trout31,1634.5 inreport
May 25, 1994Brown Trout6,7034.5 inreport
May 12, 1994Rainbow Trout10,143–report
September 22, 1993Splake10,0004.5 inreport
September 16, 1993Cutbow25,2004.5 inreport
September 16, 1993Cutbow25,2004.5 inreport
June 15, 1993Brown Trout5,1004.5 inreport
June 1, 1993Rainbow Trout44,5444.5 inreport
May 24, 1993Rainbow Trout10,2004.5 inreport
September 10, 1992Cutbow25,0004.5 inreport
September 10, 1992Cutbow25,0004.5 inreport
August 25, 1992Brown Trout5,0004.5 inreport
May 26, 1992Rainbow Trout300–report
May 15, 1992Rainbow Trout10,000–report
May 7, 1992Rainbow Trout54,6604.5 inreport
September 25, 1991Cutbow25,2004.5 inreport
September 25, 1991Cutbow25,2004.5 inreport
September 9, 1991Rainbow Trout900–report
July 24, 1991Rainbow Trout550–report
June 18, 1991Brown Trout5,1754.5 inreport
May 29, 1991Rainbow Trout50,0004.5 inreport
May 22, 1991Rainbow Trout3,015–report
May 21, 1991Rainbow Trout3,045–report
May 16, 1991Rainbow Trout3,930–report
October 25, 1990Rainbow Trout200–report
October 15, 1990Cutbow26,2504.5 inreport
October 15, 1990Cutbow26,2504.5 inreport
September 21, 1990Brown Trout5,0704.5 inreport
June 8, 1990Rainbow Trout2,655–report
May 17, 1990Rainbow Trout5,000–report
May 10, 1990Rainbow Trout52,0804.5 inreport
October 18, 1989Cutbow25,1454.5 inreport
October 18, 1989Cutbow25,1454.5 inreport
June 23, 1989Rainbow Trout50,0204.5 inreport
May 10, 1989Rainbow Trout10,000–report
October 26, 1988Brown Trout4,140–report
September 27, 1988Cutbow25,2004.5 inreport
September 27, 1988Cutbow25,2004.5 inreport
June 14, 1988Rainbow Trout50,4004.5 inreport
September 17, 1987Cutthroat Trout25,5751.5 inreport
June 3, 1987Rainbow Trout18,4804.5 inreport
June 1, 1987Rainbow Trout32,3404.5 inreport
August 12, 1986Cutthroat Trout25,0001.5 inreport
July 8, 1986Rainbow Trout10,5004.5 inreport
May 29, 1986Rainbow Trout20,0004.5 inreport
May 28, 1986Rainbow Trout21,2504.5 inreport
August 16, 1985Cutthroat Trout25,7201.5 inreport
July 1, 1985Rainbow Trout14,9001.5 inreport
July 1, 1985Rainbow Trout30,2204.5 inreport
July 26, 1984Rainbow Trout20,1254.5 inreport
July 18, 1984Rainbow Trout31,2004.5 inreport
May 18, 1984Rainbow Trout7,200–report
May 17, 1984Rainbow Trout7,200–report
July 2, 1982Rainbow Trout4,800–report
June 1, 1982Rainbow Trout28,1251.5 inreport
June 1, 1982Cutthroat Trout9,9904.5 inreport
May 24, 1982Cutthroat Trout35,0004.5 inreport
May 19, 1982Rainbow Trout21,8504.5 inreport
May 19, 1982Cutthroat Trout5,5004.5 inreport
September 23, 1981Cutbow6,9691.5 inreport
September 23, 1981Cutbow6,9691.5 inreport
July 21, 1981Rainbow Trout10,140–report
June 16, 1981Rainbow Trout13,2374.5 inreport
May 15, 1981Rainbow Trout33,6004.5 inreport
July 14, 1980Rainbow Trout2,280–report
May 6, 1980Rainbow Trout30,0001.5 inreport
May 6, 1980Rainbow Trout19,7104.5 inreport
July 30, 1979Rainbow Trout2,040–report
June 6, 1979Rainbow Trout25,0924.5 inreport
May 1, 1979Rainbow Trout50,4004.5 inreport
May 3, 1978Rainbow Trout35,1641.5 inreport
October 12, 1977Cutbow13,3641.5 inreport
June 23, 1977Cutthroat Trout11,2841.5 inreport
April 21, 1977Rainbow Trout50,0254.5 inreport
July 22, 1976Cutbow23,9801.5 inreport
July 22, 1976Cutbow23,9801.5 inreport
May 3, 1976Rainbow Trout11,8651.5 inreport
May 3, 1976Rainbow Trout28,0354.5 inreport
September 24, 1975Cutthroat Trout8,0861.5 inreport
May 21, 1975Rainbow Trout74,9684.5 inreport
September 5, 1974Cutthroat Trout14,2101.5 inreport
May 13, 1974Rainbow Trout74,4654.5 inreport
April 24, 1973Rainbow Trout74,9761.5 inreport
April 27, 1972Rainbow Trout73,8691.5 inreport
May 17, 1971Rainbow Trout43,4101.5 inreport
June 16, 1970Rainbow Trout1,890–report
June 1, 1970Rainbow Trout3,360–report
May 19, 1970Rainbow Trout49,9591.5 inreport
May 19, 1970Rainbow Trout4,800–report
May 22, 1969Rainbow Trout4,600–report
May 15, 1969Rainbow Trout27,2301.5 inreport
May 14, 1969Rainbow Trout6,000–report
May 31, 1968Rainbow Trout100,3201.5 inreport
May 20, 1968Rainbow Trout10,400–report

Access and facts

Water type
reservoir
Nearest town
Cascade
Facilities
restrooms, camping, dock

Much of the east side is private.

Drafted by AI from the cited sources and checked before publishing.

View larger map · Open in Google Maps · Directions

Advisories, closures, regulations and water conditions change. Check the Idaho Department of Fish and Game before you go.

About Horsethief Reservoir

According to the Idaho Fishing Planner, Horsethief Reservoir "has everything for a memorable fishing weekend" including a beautiful lake, good fishing, and camping. (idfg.idaho.gov, accessed September 22, 2026)

Drafted by AI from the cited sources and checked before publishing.

Nearest lakes

Fischer Pond 5.4 mi last stocked September 10, 2026 Browns Pond 27.8 mi last stocked May 24, 2010 Ol' McDonald Pond 30 mi last stocked September 10, 2026 Lowman Ponds 37.1 mi last stocked July 31, 2026 Meadow Creek Pond 38.7 mi last stocked September 10, 2026

Common questions

What fish are at Horsethief Reservoir?

Fishing Horsethief Reservoir usually means Rainbow Trout: Rainbow Trout accounts for 226 of 311 plants on record, ahead of Brown Trout and 4 more. Rainbow Trout was last stocked September 16, 2026, averaging 7 in. Brown Trout was last stocked June 16, 2026, averaging 4.5 in. Cutbow was last stocked September 20, 2001, averaging 3.4 in. Kokanee Salmon was last stocked June 17, 2026, averaging 1.5 in. 2 more species are on the stocking report. Black Bullhead, Brook Trout, and Yellow Perch are recorded here outside the stocking reports.

When is Horsethief Reservoir stocked?

Last stocked October 20, 2026. It is stocked about 5.3 times a year since 1968, most often in May and June. No plants recorded in 1983.

How big are the fish stocked at Horsethief Reservoir?

Stocked fish average 5.4 in. Rainbow Trout average 7 in. Brown Trout average 4.5 in. Cutbow average 3.4 in. Kokanee Salmon average 1.5 in.

How do you get on Horsethief Reservoir?

The nearest town is Cascade. Facilities include restrooms, camping, and dock. Much of the east side is private.

Sources (5) +