Hagerman WMA Oster Lake #4 fishing

Hagerman WMA Oster Lake #4 fishing has Rainbow Trout and Common Carp on the stocking report. Also recorded: Bluegill, Largemouth Bass, and Grass Carp. It is stocked about 11 times a year since 1968, most often in March and May. Species guides list dawn and dusk for Rainbow Trout, Common Carp, and Largemouth Bass and dawn, day, and dusk for Bluegill.

AI-generated illustration, not a photo of this lake
Last stocked
September 8, 2026
· Rainbow Trout
Plants on record
635
Since 1968
Species stocked
2 (+3 also recorded)
Average size
9.8 in
Surface acres
5.7
Elevation
2,946 ft

Fish at Hagerman WMA Oster Lake #4

2 stocked · 3 confirmed present

Rainbow Trout Stocked · 634 plants · last September 8, 2026 Best: dawn, dusk

Last stocked September 8, 2026 · avg 9.8 in · 634 plants

Best: dawn, dusk

Rainbow Trout species guide
Common Carp Stocked · 1 plant · last July 7, 2014 Best: dawn, dusk

Last stocked July 7, 2014 · 1 plant

Best: dawn, dusk

Common Carp species guide

How Hagerman WMA Oster Lake #4 is stocked

Source: Idaho Department of Fish and Game.

Hagerman WMA Oster Lake #1 (0.4 mi), Hagerman WMA Riley Creek Pond (0.5 mi), and Niagara Springs Wood Duck Pond (10.9 mi) were stocked more recently. Hagerman WMA Oster Lake #1 is also stocked with Rainbow Trout, Hagerman WMA Riley Creek Pond is also stocked with Rainbow Trout, and Niagara Springs Wood Duck Pond is also stocked with Rainbow Trout.

Fish stocked in 1968

5,900

Fish stocked in 1969

2,920

Fish stocked in 1970

3,355

Fish stocked in 1971

2,495

Fish stocked in 1972

3,945

Fish stocked in 1973

4,310

Fish stocked in 1974

5,600

Fish stocked in 1975

5,862

Fish stocked in 1976

8,018

Fish stocked in 1977

6,957

Fish stocked in 1978

6,519

Fish stocked in 1979

5,595

Fish stocked in 1980

12,200

Fish stocked in 1981

8,382

Fish stocked in 1982

7,375

Fish stocked in 1983

6,884

Fish stocked in 1984

6,505

Fish stocked in 1985

6,985

Fish stocked in 1986

5,409

Fish stocked in 1987

5,056

Fish stocked in 1988

9,144

Fish stocked in 1989

6,342

Fish stocked in 1990

6,535

Fish stocked in 1991

6,506

Fish stocked in 1992

8,159

Fish stocked in 1993

6,825

Fish stocked in 1994

7,792

Fish stocked in 1995

5,452

Fish stocked in 1996

5,609

Fish stocked in 1997

3,858

Fish stocked in 1998

3,000

Fish stocked in 1999

3,234

Fish stocked in 2000

2,250

Fish stocked in 2001

3,097

Fish stocked in 2002

2,438

Fish stocked in 2003

4,395

Fish stocked in 2004

2,885

Fish stocked in 2005

2,126

Fish stocked in 2006

3,234

Fish stocked in 2007

2,206

Fish stocked in 2008

4,015

Fish stocked in 2009

2,973

Fish stocked in 2010

3,084

Fish stocked in 2011

3,548

Fish stocked in 2012

3,049

Fish stocked in 2013

3,994

Fish stocked in 2014

3,140

Fish stocked in 2015

2,739

Fish stocked in 2016

2,242

Fish stocked in 2017

3,458

Fish stocked in 2018

2,081

Fish stocked in 2019

2,447

Fish stocked in 2020

2,795

Fish stocked in 2021

1,661

Fish stocked in 2022

1,517

Fish stocked in 2023

2,207

Fish stocked in 2024

2,087

Fish stocked in 2025

2,295

Fish stocked in 2026

2,182

Stocking history

Source: Idaho Department of Fish and Game.
Date Species Quantity Avg. length Source
September 8, 2026Rainbow Trout48013 inreport
June 11, 2026Rainbow Trout27413 inreport
May 13, 2026Rainbow Trout26013 inreport
March 19, 2026Rainbow Trout35813 inreport
March 4, 2026Rainbow Trout360–report
February 26, 2026Rainbow Trout45013 inreport
September 5, 2025Rainbow Trout45013 inreport
June 9, 2025Rainbow Trout24913 inreport
May 21, 2025Rainbow Trout25513 inreport
April 10, 2025Rainbow Trout398–report
March 11, 2025Rainbow Trout39313 inreport
February 25, 2025Rainbow Trout100–report
February 24, 2025Rainbow Trout45013 inreport
September 11, 2024Rainbow Trout450–report
June 10, 2024Rainbow Trout25013 inreport
May 22, 2024Rainbow Trout24913 inreport
April 16, 2024Rainbow Trout3513 inreport
April 16, 2024Rainbow Trout300–report
March 14, 2024Rainbow Trout5113 inreport
March 14, 2024Rainbow Trout300–report
February 27, 2024Rainbow Trout5213 inreport
February 27, 2024Rainbow Trout400–report
September 13, 2023Rainbow Trout450–report
June 8, 2023Rainbow Trout255–report
May 22, 2023Rainbow Trout252–report
April 18, 2023Rainbow Trout357–report
March 8, 2023Rainbow Trout517–report
February 28, 2023Rainbow Trout240–report
February 13, 2023Rainbow Trout6913 inreport
February 13, 2023Rainbow Trout677 inreport
September 12, 2022Rainbow Trout459–report
June 15, 2022Rainbow Trout259–report
March 9, 2022Rainbow Trout350–report
February 17, 2022Rainbow Trout449–report
September 14, 2021Rainbow Trout450–report
June 16, 2021Rainbow Trout25513 inreport
April 26, 2021Rainbow Trout253–report
April 13, 2021Rainbow Trout353–report
March 10, 2021Rainbow Trout350–report
November 10, 2020Rainbow Trout39613 inreport
September 8, 2020Rainbow Trout6613 inreport
September 8, 2020Rainbow Trout404–report
June 12, 2020Rainbow Trout26013 inreport
May 7, 2020Rainbow Trout6013 inreport
May 7, 2020Rainbow Trout263–report
April 9, 2020Rainbow Trout5613 inreport
April 9, 2020Rainbow Trout37413 inreport
March 12, 2020Rainbow Trout8513 inreport
March 12, 2020Rainbow Trout33013 inreport
February 28, 2020Rainbow Trout40–report
February 27, 2020Rainbow Trout5113 inreport
February 27, 2020Rainbow Trout41013 inreport
September 13, 2019Rainbow Trout310–report
September 13, 2019Rainbow Trout11013 inreport
June 5, 2019Rainbow Trout5813 inreport
June 4, 2019Rainbow Trout20413 inreport
May 24, 2019Rainbow Trout405–report
May 24, 2019Rainbow Trout7913 inreport
April 30, 2019Rainbow Trout20–report
April 10, 2019Rainbow Trout361–report
April 10, 2019Rainbow Trout5113 inreport
March 26, 2019Rainbow Trout300–report
March 26, 2019Rainbow Trout50–report
February 28, 2019Rainbow Trout356–report
February 28, 2019Rainbow Trout86–report
January 17, 2019Rainbow Trout337 inreport
January 17, 2019Rainbow Trout24–report
September 14, 2018Rainbow Trout385–report
September 14, 2018Rainbow Trout107 inreport
June 8, 2018Rainbow Trout250–report
June 8, 2018Rainbow Trout5013 inreport
May 10, 2018Rainbow Trout240–report
May 10, 2018Rainbow Trout1113 inreport
April 16, 2018Rainbow Trout303–report
April 16, 2018Rainbow Trout5813 inreport
March 23, 2018Rainbow Trout320–report
March 23, 2018Rainbow Trout3713 inreport
February 28, 2018Rainbow Trout362–report
February 28, 2018Rainbow Trout5513 inreport
September 1, 2017Rainbow Trout440–report
May 26, 2017Rainbow Trout1,552–report
May 12, 2017Rainbow Trout250–report
April 6, 2017Rainbow Trout336–report
April 6, 2017Rainbow Trout20–report
March 17, 2017Rainbow Trout293–report
March 17, 2017Rainbow Trout20–report
February 28, 2017Rainbow Trout398–report
February 28, 2017Rainbow Trout66–report
February 28, 2017Rainbow Trout83–report
September 15, 2016Rainbow Trout320–report
September 15, 2016Rainbow Trout36–report
June 10, 2016Rainbow Trout10–report
June 9, 2016Rainbow Trout372–report
June 9, 2016Rainbow Trout25–report
May 13, 2016Rainbow Trout200–report
May 13, 2016Rainbow Trout50–report
April 7, 2016Rainbow Trout313–report
April 7, 2016Rainbow Trout42–report
March 17, 2016Rainbow Trout79–report
March 17, 2016Rainbow Trout224–report
February 29, 2016Rainbow Trout369–report
February 29, 2016Rainbow Trout122–report
February 11, 2016Rainbow Trout80–report
November 2, 2015Rainbow Trout217–report
September 29, 2015Rainbow Trout499–report
June 12, 2015Rainbow Trout300–report
June 12, 2015Rainbow Trout44–report
May 13, 2015Rainbow Trout176–report
May 13, 2015Rainbow Trout114–report
April 15, 2015Rainbow Trout310–report
April 15, 2015Rainbow Trout89–report
March 24, 2015Rainbow Trout25–report
March 20, 2015Rainbow Trout306–report
March 20, 2015Rainbow Trout88–report
February 26, 2015Rainbow Trout30–report
February 23, 2015Rainbow Trout442–report
February 23, 2015Rainbow Trout99–report
December 10, 2014Rainbow Trout32–report
September 12, 2014Rainbow Trout422–report
September 12, 2014Rainbow Trout68–report
July 7, 2014Common Carp138–report
July 3, 2014Rainbow Trout195–report
July 3, 2014Rainbow Trout8–report
June 13, 2014Rainbow Trout501–report
June 13, 2014Rainbow Trout37–report
May 16, 2014Rainbow Trout290–report
April 18, 2014Rainbow Trout292–report
April 18, 2014Rainbow Trout100–report
March 21, 2014Rainbow Trout255–report
March 21, 2014Rainbow Trout50–report
February 27, 2014Rainbow Trout520–report
February 27, 2014Rainbow Trout120–report
February 13, 2014Rainbow Trout112–report
September 25, 2013Rainbow Trout500–report
September 12, 2013Rainbow Trout1,050–report
May 24, 2013Rainbow Trout330–report
May 10, 2013Rainbow Trout501–report
April 26, 2013Rainbow Trout312–report
April 12, 2013Rainbow Trout420–report
March 22, 2013Rainbow Trout400–report
February 26, 2013Rainbow Trout20–report
February 25, 2013Rainbow Trout461–report
October 16, 2012Rainbow Trout5–report
September 21, 2012Rainbow Trout400–report
June 29, 2012Rainbow Trout282–report
June 11, 2012Rainbow Trout9–report
June 8, 2012Rainbow Trout300–report
June 8, 2012Rainbow Trout45–report
June 8, 2012Rainbow Trout15–report
May 10, 2012Rainbow Trout400–report
April 12, 2012Rainbow Trout350–report
April 12, 2012Rainbow Trout55–report
March 30, 2012Rainbow Trout194–report
March 30, 2012Rainbow Trout36–report
March 23, 2012Rainbow Trout207–report
March 23, 2012Rainbow Trout34–report
March 22, 2012Rainbow Trout15–report
March 9, 2012Rainbow Trout228–report
March 9, 2012Rainbow Trout24–report
February 29, 2012Rainbow Trout300–report
February 29, 2012Rainbow Trout150–report
October 6, 2011Rainbow Trout188–report
October 6, 2011Rainbow Trout58–report
September 2, 2011Rainbow Trout220–report
September 2, 2011Rainbow Trout65–report
September 1, 2011Rainbow Trout15–report
June 30, 2011Rainbow Trout420–report
June 30, 2011Rainbow Trout80–report
June 10, 2011Rainbow Trout20–report
May 27, 2011Rainbow Trout210–report
May 27, 2011Rainbow Trout45–report
May 12, 2011Rainbow Trout105–report
May 12, 2011Rainbow Trout50–report
April 22, 2011Rainbow Trout240–report
April 22, 2011Rainbow Trout50–report
April 7, 2011Rainbow Trout500–report
April 7, 2011Rainbow Trout117–report
March 25, 2011Rainbow Trout390–report
March 25, 2011Rainbow Trout100–report
March 14, 2011Rainbow Trout200–report
February 28, 2011Rainbow Trout300–report
February 28, 2011Rainbow Trout100–report
February 28, 2011Rainbow Trout75–report
September 17, 2010Rainbow Trout195–report
September 17, 2010Rainbow Trout70–report
September 3, 2010Rainbow Trout195–report
September 3, 2010Rainbow Trout70–report
September 3, 2010Rainbow Trout35–report
July 2, 2010Rainbow Trout170–report
July 2, 2010Rainbow Trout68–report
June 11, 2010Rainbow Trout128–report
June 11, 2010Rainbow Trout40–report
May 28, 2010Rainbow Trout120–report
May 28, 2010Rainbow Trout50–report
May 14, 2010Rainbow Trout224–report
May 14, 2010Rainbow Trout60–report
April 16, 2010Rainbow Trout216–report
April 16, 2010Rainbow Trout88–report
April 2, 2010Rainbow Trout119–report
April 2, 2010Rainbow Trout43–report
March 22, 2010Rainbow Trout208–report
March 22, 2010Rainbow Trout66–report
March 12, 2010Rainbow Trout138–report
March 12, 2010Rainbow Trout52–report
March 5, 2010Rainbow Trout150–report
March 5, 2010Rainbow Trout49–report
February 26, 2010Rainbow Trout390–report
February 26, 2010Rainbow Trout140–report
September 25, 2009Rainbow Trout300–report
September 25, 2009Rainbow Trout180–report
May 22, 2009Rainbow Trout110–report
May 22, 2009Rainbow Trout100–report
May 15, 2009Rainbow Trout165–report
May 15, 2009Rainbow Trout100–report
May 1, 2009Rainbow Trout165–report
May 1, 2009Rainbow Trout100–report
April 3, 2009Rainbow Trout130–report
April 3, 2009Rainbow Trout110–report
March 13, 2009Rainbow Trout300–report
March 13, 2009Rainbow Trout110–report
March 6, 2009Rainbow Trout300–report
March 6, 2009Rainbow Trout110–report
February 27, 2009Rainbow Trout580–report
February 27, 2009Rainbow Trout113–report
October 2, 2008Rainbow Trout330–report
October 2, 2008Rainbow Trout180–report
June 27, 2008Rainbow Trout140–report
June 27, 2008Rainbow Trout210–report
June 6, 2008Rainbow Trout280–report
June 6, 2008Rainbow Trout140–report
May 22, 2008Rainbow Trout560–report
May 22, 2008Rainbow Trout70–report
May 1, 2008Rainbow Trout280–report
May 1, 2008Rainbow Trout70–report
April 3, 2008Rainbow Trout280–report
April 3, 2008Rainbow Trout70–report
March 14, 2008Rainbow Trout280–report
March 14, 2008Rainbow Trout70–report
March 7, 2008Rainbow Trout280–report
March 7, 2008Rainbow Trout70–report
February 29, 2008Rainbow Trout495–report
February 29, 2008Rainbow Trout210–report
September 20, 2007Rainbow Trout480–report
June 9, 2007Rainbow Trout50–report
June 9, 2007Rainbow Trout40–report
May 25, 2007Rainbow Trout100–report
May 25, 2007Rainbow Trout100–report
April 13, 2007Rainbow Trout200–report
April 13, 2007Rainbow Trout25–report
March 30, 2007Rainbow Trout300–report
March 30, 2007Rainbow Trout58–report
March 16, 2007Rainbow Trout276–report
February 28, 2007Rainbow Trout460–report
February 28, 2007Rainbow Trout117–report
September 15, 2006Rainbow Trout465–report
August 31, 2006Rainbow Trout160–report
August 31, 2006Rainbow Trout100–report
June 10, 2006Rainbow Trout360–report
June 10, 2006Rainbow Trout70–report
May 4, 2006Rainbow Trout140–report
April 20, 2006Rainbow Trout340–report
March 31, 2006Rainbow Trout308–report
March 17, 2006Rainbow Trout250–report
March 17, 2006Rainbow Trout100–report
March 9, 2006Rainbow Trout160–report
March 3, 2006Rainbow Trout781–report
July 1, 2005Rainbow Trout700–report
June 10, 2005Rainbow Trout180–report
May 6, 2005Rainbow Trout270–report
April 22, 2005Rainbow Trout216–report
March 25, 2005Rainbow Trout105–report
March 18, 2005Rainbow Trout105–report
March 11, 2005Rainbow Trout200–report
March 4, 2005Rainbow Trout300–report
March 4, 2005Rainbow Trout50–report
September 3, 2004Rainbow Trout500–report
June 25, 2004Rainbow Trout165–report
June 12, 2004Rainbow Trout150–report
May 20, 2004Rainbow Trout195–report
May 7, 2004Rainbow Trout195–report
April 22, 2004Rainbow Trout273–report
April 9, 2004Rainbow Trout299–report
March 24, 2004Rainbow Trout225–report
March 10, 2004Rainbow Trout200–report
March 5, 2004Rainbow Trout195–report
February 27, 2004Rainbow Trout488–report
September 18, 2003Rainbow Trout495–report
June 5, 2003Rainbow Trout300–report
May 12, 2003Rainbow Trout162–report
April 25, 2003Rainbow Trout250–report
April 17, 2003Rainbow Trout1,968–report
March 27, 2003Rainbow Trout500–report
March 13, 2003Rainbow Trout240–report
February 28, 2003Rainbow Trout480–report
August 29, 2002Rainbow Trout202–report
June 21, 2002Rainbow Trout200–report
June 7, 2002Rainbow Trout200–report
May 24, 2002Rainbow Trout204–report
May 10, 2002Rainbow Trout204–report
April 26, 2002Rainbow Trout207–report
April 12, 2002Rainbow Trout216–report
March 29, 2002Rainbow Trout225–report
March 22, 2002Rainbow Trout25–report
March 15, 2002Rainbow Trout255–report
February 28, 2002Rainbow Trout480–report
February 28, 2002Rainbow Trout20–report
August 31, 2001Rainbow Trout334–report
June 7, 2001Rainbow Trout364–report
June 4, 2001Rainbow Trout399–report
May 18, 2001Rainbow Trout250–report
May 4, 2001Rainbow Trout250–report
April 27, 2001Rainbow Trout250–report
April 6, 2001Rainbow Trout250–report
March 23, 2001Rainbow Trout250–report
March 9, 2001Rainbow Trout250–report
February 28, 2001Rainbow Trout500–report
August 28, 2000Rainbow Trout200–report
June 6, 2000Rainbow Trout250–report
May 19, 2000Rainbow Trout200–report
May 5, 2000Rainbow Trout200–report
April 21, 2000Rainbow Trout200–report
April 7, 2000Rainbow Trout200–report
March 31, 2000Rainbow Trout250–report
March 3, 2000Rainbow Trout250–report
February 28, 2000Rainbow Trout500–report
September 10, 1999Rainbow Trout334–report
June 11, 1999Rainbow Trout200–report
May 27, 1999Rainbow Trout200–report
May 14, 1999Rainbow Trout250–report
May 7, 1999Rainbow Trout250–report
April 23, 1999Rainbow Trout250–report
April 9, 1999Rainbow Trout250–report
March 26, 1999Rainbow Trout500–report
March 12, 1999Rainbow Trout500–report
February 26, 1999Rainbow Trout500–report
September 18, 1998Rainbow Trout500–report
June 26, 1998Rainbow Trout250–report
June 5, 1998Rainbow Trout200–report
May 22, 1998Rainbow Trout300–report
April 30, 1998Rainbow Trout250–report
April 17, 1998Rainbow Trout250–report
April 3, 1998Rainbow Trout250–report
March 20, 1998Rainbow Trout500–report
February 27, 1998Rainbow Trout500–report
October 7, 1997Rainbow Trout575–report
August 29, 1997Rainbow Trout500–report
June 19, 1997Rainbow Trout258–report
June 6, 1997Rainbow Trout258–report
May 15, 1997Rainbow Trout313–report
May 2, 1997Rainbow Trout337–report
April 18, 1997Rainbow Trout259–report
April 4, 1997Rainbow Trout258–report
March 14, 1997Rainbow Trout550–report
February 28, 1997Rainbow Trout550–report
October 9, 1996Rainbow Trout725–report
September 13, 1996Rainbow Trout534–report
June 25, 1996Rainbow Trout225–report
June 7, 1996Rainbow Trout315–report
May 24, 1996Rainbow Trout316–report
May 10, 1996Rainbow Trout317–report
April 19, 1996Rainbow Trout344–report
April 5, 1996Rainbow Trout333–report
March 15, 1996Rainbow Trout1,000–report
March 4, 1996Rainbow Trout400–report
February 27, 1996Rainbow Trout1,100–report
September 13, 1995Rainbow Trout600–report
June 9, 1995Rainbow Trout483–report
June 8, 1995Rainbow Trout7004.5 inreport
May 16, 1995Rainbow Trout483–report
April 21, 1995Rainbow Trout886–report
March 24, 1995Rainbow Trout400–report
March 10, 1995Rainbow Trout400–report
February 27, 1995Rainbow Trout1,500–report
October 18, 1994Rainbow Trout780–report
September 30, 1994Rainbow Trout1,000–report
May 17, 1994Rainbow Trout759–report
May 3, 1994Rainbow Trout753–report
April 13, 1994Rainbow Trout1,500–report
March 18, 1994Rainbow Trout750–report
February 28, 1994Rainbow Trout2,250–report
September 1, 1993Rainbow Trout1,375–report
June 10, 1993Rainbow Trout950–report
May 5, 1993Rainbow Trout1,500–report
April 8, 1993Rainbow Trout1,500–report
March 12, 1993Rainbow Trout1,500–report
November 6, 1992Rainbow Trout202–report
September 11, 1992Rainbow Trout1,000–report
June 12, 1992Rainbow Trout1,040–report
May 19, 1992Rainbow Trout1,498–report
April 6, 1992Rainbow Trout1,500–report
March 9, 1992Rainbow Trout1,500–report
February 27, 1992Rainbow Trout1,419–report
August 28, 1991Rainbow Trout1,007–report
June 27, 1991Rainbow Trout4954.5 inreport
June 6, 1991Rainbow Trout510–report
May 21, 1991Rainbow Trout800–report
May 7, 1991Rainbow Trout700–report
April 9, 1991Rainbow Trout990–report
March 11, 1991Rainbow Trout504–report
February 27, 1991Rainbow Trout1,500–report
September 7, 1990Rainbow Trout1,015–report
June 4, 1990Rainbow Trout1,003–report
May 15, 1990Rainbow Trout969–report
April 13, 1990Rainbow Trout550–report
March 12, 1990Rainbow Trout1,498–report
February 28, 1990Rainbow Trout1,500–report
September 20, 1989Rainbow Trout882–report
June 26, 1989Rainbow Trout5204.5 inreport
June 7, 1989Rainbow Trout450–report
May 23, 1989Rainbow Trout800–report
May 1, 1989Rainbow Trout690–report
March 22, 1989Rainbow Trout1,500–report
February 28, 1989Rainbow Trout1,500–report
October 5, 1988Rainbow Trout560–report
September 6, 1988Rainbow Trout1,012–report
June 3, 1988Rainbow Trout1,050–report
May 9, 1988Rainbow Trout1,500–report
April 5, 1988Rainbow Trout774–report
March 8, 1988Rainbow Trout752–report
February 17, 1988Rainbow Trout1,512–report
January 26, 1988Rainbow Trout1,984–report
September 4, 1987Rainbow Trout1,000–report
June 17, 1987Rainbow Trout525–report
June 5, 1987Rainbow Trout504–report
May 19, 1987Rainbow Trout676–report
May 7, 1987Rainbow Trout3381.5 inreport
May 5, 1987Rainbow Trout504–report
April 16, 1987Rainbow Trout750–report
March 12, 1987Rainbow Trout759–report
September 5, 1986Rainbow Trout855–report
June 20, 1986Rainbow Trout496–report
June 6, 1986Rainbow Trout510–report
May 20, 1986Rainbow Trout702–report
May 5, 1986Rainbow Trout806–report
April 2, 1986Rainbow Trout750–report
March 13, 1986Rainbow Trout770–report
February 25, 1986Rainbow Trout520–report
October 25, 1985Rainbow Trout980–report
September 13, 1985Rainbow Trout1,007–report
June 14, 1985Rainbow Trout500–report
May 23, 1985Rainbow Trout744–report
May 9, 1985Rainbow Trout754–report
April 19, 1985Rainbow Trout485–report
April 4, 1985Rainbow Trout640–report
March 20, 1985Rainbow Trout225–report
February 26, 1985Rainbow Trout1,650–report
October 22, 1984Rainbow Trout1,950–report
September 25, 1984Rainbow Trout400–report
June 15, 1984Rainbow Trout380–report
May 23, 1984Rainbow Trout920–report
May 18, 1984Rainbow Trout480–report
May 3, 1984Rainbow Trout195–report
April 19, 1984Rainbow Trout260–report
April 6, 1984Rainbow Trout120–report
March 22, 1984Rainbow Trout200–report
March 5, 1984Rainbow Trout500–report
February 28, 1984Rainbow Trout1,100–report
September 24, 1983Rainbow Trout1,350–report
May 27, 1983Rainbow Trout2,318–report
May 11, 1983Rainbow Trout156–report
April 29, 1983Rainbow Trout170–report
April 15, 1983Rainbow Trout170–report
March 31, 1983Rainbow Trout615–report
March 25, 1983Rainbow Trout340–report
March 11, 1983Rainbow Trout465–report
February 25, 1983Rainbow Trout1,300–report
October 28, 1982Rainbow Trout875–report
September 13, 1982Rainbow Trout407–report
July 16, 1982Rainbow Trout380–report
June 10, 1982Rainbow Trout390–report
May 28, 1982Rainbow Trout640–report
May 14, 1982Rainbow Trout330–report
May 7, 1982Rainbow Trout7564.5 inreport
April 30, 1982Rainbow Trout352–report
April 16, 1982Rainbow Trout1,050–report
March 31, 1982Rainbow Trout700–report
March 17, 1982Rainbow Trout945–report
March 8, 1982Rainbow Trout550–report
October 15, 1981Rainbow Trout1,880–report
October 2, 1981Rainbow Trout580–report
September 17, 1981Rainbow Trout9454.5 inreport
July 2, 1981Rainbow Trout340–report
June 16, 1981Rainbow Trout435–report
May 28, 1981Rainbow Trout210–report
May 22, 1981Rainbow Trout660–report
May 8, 1981Rainbow Trout240–report
April 24, 1981Rainbow Trout330–report
April 16, 1981Rainbow Trout300–report
April 4, 1981Rainbow Trout132–report
March 20, 1981Rainbow Trout200–report
March 11, 1981Rainbow Trout400–report
March 5, 1981Rainbow Trout320–report
February 24, 1981Rainbow Trout720–report
January 29, 1981Rainbow Trout230–report
January 27, 1981Rainbow Trout460–report
October 10, 1980Rainbow Trout435–report
October 7, 1980Rainbow Trout1,3124.5 inreport
September 15, 1980Rainbow Trout1,050–report
July 11, 1980Rainbow Trout200–report
June 23, 1980Rainbow Trout240–report
June 9, 1980Rainbow Trout280–report
June 6, 1980Rainbow Trout396–report
May 22, 1980Rainbow Trout660–report
May 9, 1980Rainbow Trout340–report
May 2, 1980Rainbow Trout4,8004.5 inreport
April 23, 1980Rainbow Trout380–report
April 10, 1980Rainbow Trout740–report
March 27, 1980Rainbow Trout440–report
March 11, 1980Rainbow Trout427–report
February 14, 1980Rainbow Trout500–report
December 21, 1979Rainbow Trout6904.5 inreport
October 17, 1979Rainbow Trout500–report
September 20, 1979Rainbow Trout585–report
June 1, 1979Rainbow Trout300–report
May 22, 1979Rainbow Trout390–report
May 11, 1979Rainbow Trout90–report
April 26, 1979Rainbow Trout750–report
April 20, 1979Rainbow Trout240–report
March 28, 1979Rainbow Trout180–report
March 19, 1979Rainbow Trout210–report
March 6, 1979Rainbow Trout260–report
February 15, 1979Rainbow Trout1,400–report
October 13, 1978Rainbow Trout960–report
September 14, 1978Rainbow Trout1,1374.5 inreport
June 8, 1978Rainbow Trout290–report
May 26, 1978Rainbow Trout900–report
May 18, 1978Rainbow Trout145–report
May 9, 1978Rainbow Trout290–report
April 26, 1978Rainbow Trout218–report
April 14, 1978Rainbow Trout380–report
March 30, 1978Rainbow Trout429–report
March 21, 1978Rainbow Trout390–report
March 10, 1978Rainbow Trout420–report
February 24, 1978Rainbow Trout960–report
October 14, 1977Rainbow Trout840–report
September 23, 1977Rainbow Trout1,0004.5 inreport
September 1, 1977Rainbow Trout190–report
June 8, 1977Rainbow Trout400–report
May 23, 1977Rainbow Trout1,100–report
May 6, 1977Rainbow Trout600–report
April 25, 1977Rainbow Trout577–report
April 16, 1977Rainbow Trout315–report
April 6, 1977Rainbow Trout420–report
March 22, 1977Rainbow Trout675–report
March 9, 1977Rainbow Trout540–report
February 28, 1977Rainbow Trout300–report
December 27, 1976Rainbow Trout1,0404.5 inreport
October 22, 1976Rainbow Trout680–report
October 21, 1976Rainbow Trout330–report
October 5, 1976Rainbow Trout330–report
September 20, 1976Rainbow Trout340–report
September 15, 1976Rainbow Trout238–report
September 3, 1976Rainbow Trout80–report
July 9, 1976Rainbow Trout80–report
June 25, 1976Rainbow Trout80–report
June 11, 1976Rainbow Trout200–report
June 3, 1976Rainbow Trout200–report
May 28, 1976Rainbow Trout360–report
May 13, 1976Rainbow Trout180–report
April 29, 1976Rainbow Trout240–report
April 19, 1976Rainbow Trout1,000–report
April 9, 1976Rainbow Trout440–report
March 24, 1976Rainbow Trout330–report
March 18, 1976Rainbow Trout700–report
March 9, 1976Rainbow Trout520–report
February 23, 1976Rainbow Trout650–report
October 21, 1975Rainbow Trout1,2421.5 inreport
September 30, 1975Rainbow Trout2704.5 inreport
September 26, 1975Rainbow Trout260–report
September 13, 1975Rainbow Trout75–report
July 1, 1975Rainbow Trout85–report
June 13, 1975Rainbow Trout95–report
June 6, 1975Rainbow Trout240–report
May 29, 1975Rainbow Trout200–report
May 22, 1975Rainbow Trout460–report
May 16, 1975Rainbow Trout280–report
May 1, 1975Rainbow Trout500–report
April 16, 1975Rainbow Trout400–report
April 3, 1975Rainbow Trout480–report
March 5, 1975Rainbow Trout405–report
February 26, 1975Rainbow Trout870–report
October 18, 1974Rainbow Trout185–report
October 9, 1974Rainbow Trout1,0504.5 inreport
September 18, 1974Rainbow Trout300–report
August 16, 1974Rainbow Trout60–report
July 16, 1974Rainbow Trout95–report
July 3, 1974Rainbow Trout360–report
June 14, 1974Rainbow Trout460–report
May 23, 1974Rainbow Trout840–report
May 16, 1974Rainbow Trout400–report
April 29, 1974Rainbow Trout300–report
April 9, 1974Rainbow Trout220–report
March 20, 1974Rainbow Trout210–report
February 17, 1974Rainbow Trout900–report
January 25, 1974Rainbow Trout220–report
October 16, 1973Rainbow Trout1,0004.5 inreport
September 18, 1973Rainbow Trout630–report
August 28, 1973Rainbow Trout200–report
July 25, 1973Rainbow Trout75–report
June 14, 1973Rainbow Trout60–report
May 18, 1973Rainbow Trout280–report
April 27, 1973Rainbow Trout130–report
April 6, 1973Rainbow Trout270–report
March 23, 1973Rainbow Trout270–report
March 9, 1973Rainbow Trout270–report
March 1, 1973Rainbow Trout495–report
February 23, 1973Rainbow Trout630–report
November 20, 1972Rainbow Trout7504.5 inreport
October 4, 1972Rainbow Trout1,0004.5 inreport
September 29, 1972Rainbow Trout580–report
August 18, 1972Rainbow Trout300–report
July 11, 1972Rainbow Trout90–report
June 28, 1972Rainbow Trout180–report
June 13, 1972Rainbow Trout85–report
May 31, 1972Rainbow Trout130–report
May 24, 1972Rainbow Trout570–report
May 15, 1972Rainbow Trout260–report
October 15, 1971Rainbow Trout260–report
September 3, 1971Rainbow Trout460–report
July 14, 1971Rainbow Trout340–report
July 1, 1971Rainbow Trout360–report
June 9, 1971Rainbow Trout775–report
May 3, 1971Rainbow Trout300–report
September 10, 1970Rainbow Trout975–report
July 14, 1970Rainbow Trout800–report
June 22, 1970Rainbow Trout440–report
June 5, 1970Rainbow Trout220–report
May 25, 1970Rainbow Trout400–report
April 8, 1970Rainbow Trout520–report
July 29, 1969Rainbow Trout1,000–report
June 18, 1969Rainbow Trout1,920–report
August 16, 1968Rainbow Trout1,0404.5 inreport
June 24, 1968Rainbow Trout540–report
June 13, 1968Rainbow Trout360–report
April 4, 1968Rainbow Trout3,9604.5 inreport

Access and facts

Nearest town
Hagerman

One of five Oster Lakes on the southeast side of Hagerman WMA. From Hagerman go 2.8 miles south on US 30, turn east at the national hatchery sign, keep right, and drive 1 mile to the Oster ponds lot, then walk in on trails. The shared access site lists an accessible restroom and dock.

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

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

Nearest lakes

Hagerman WMA Oster Lake #2 0.2 mi last stocked September 8, 2026 Hagerman WMA Oster Lake #3 0.2 mi last stocked September 8, 2026 Hagerman WMA Oster Lake #1 0.4 mi last stocked September 17, 2026 Hagerman WMA Riley Creek Pond 0.5 mi last stocked September 17, 2026 Niagara Springs Wood Duck Pond 10.9 mi last stocked September 9, 2026

Common questions

What fish are at Hagerman WMA Oster Lake #4?

Fishing Hagerman WMA Oster Lake #4 usually means Rainbow Trout: Rainbow Trout accounts for 634 of 635 plants on record, ahead of Common Carp. Rainbow Trout was last stocked September 8, 2026, averaging 9.8 in. Common Carp was last stocked July 7, 2014. Bluegill, Largemouth Bass, and Grass Carp are recorded here outside the stocking reports.

When is Hagerman WMA Oster Lake #4 stocked?

Last stocked September 8, 2026. It is stocked about 11 times a year since 1968, most often in March and May.

How big are the fish stocked at Hagerman WMA Oster Lake #4?

Rainbow Trout stocked at Hagerman WMA Oster Lake #4 average 9.8 in.

How do you get on Hagerman WMA Oster Lake #4?

The nearest town is Hagerman. One of five Oster Lakes on the southeast side of Hagerman WMA. From Hagerman go 2.8 miles south on US 30, turn east at the national hatchery sign, keep right, and drive 1 mile to the Oster ponds lot, then walk in on trails. The shared access site lists an accessible restroom and dock.

Which lakes near Hagerman WMA Oster Lake #4 were stocked more recently?

Hagerman WMA Oster Lake #1 (0.4 mi), Hagerman WMA Riley Creek Pond (0.5 mi), and Niagara Springs Wood Duck Pond (10.9 mi) were stocked more recently. Hagerman WMA Oster Lake #1 is also stocked with Rainbow Trout, Hagerman WMA Riley Creek Pond is also stocked with Rainbow Trout, and Niagara Springs Wood Duck Pond is also stocked with Rainbow Trout.

Sources (3) +