Medicine Lake fishing

Medicine Lake fishing has Rainbow Trout, Brook Trout, and Cutthroat Trout on the stocking report. It is stocked about 3.2 times a year since 1992, most often in April and May. Species guides list dawn and dusk for Rainbow Trout and dawn, day, and dusk for Brook Trout.

AI-generated illustration, not a photo of this lake

Last stocked: April 2026; Rainbow Trout
Plants on record: 112; Since 1992
Species recorded: 3
Average size: 8.2 in
Elevation: 4,480 ft

Fish at Medicine Lake

3 stocked · 0 confirmed present

Rainbow Trout Stocked · 91 plants · last April 2026 Best: dawn, dusk

Last stocked April 2026 · avg 8.7 in · 91 plants

Best: dawn, dusk

Rainbow Trout species guide

Brook Trout Stocked · 16 plants · last June 2025 Best: dawn, day, dusk

Last stocked June 2025 · avg 4.3 in · 16 plants

Best: dawn, day, dusk

Brook Trout species guide

Cutthroat Trout Stocked · 5 plants · last September 2008

Last stocked September 2008 · avg 10.6 in · 5 plants

Cutthroat Trout species guide

How Medicine Lake is stocked

Source: Wyoming Game and Fish Department.

Cook Lake (11.7 mi) and Keyhole Reservoir (26.6 mi) were stocked more recently. Cook Lake is also stocked with Rainbow Trout, Cutthroat Trout, and Brook Trout.

Fish stocked in 1992

609

Fish stocked in 1993

3,324

Fish stocked in 1994

1,301

Fish stocked in 1995

1,423

Fish stocked in 1996

1,262

Fish stocked in 1997

1,918

Fish stocked in 1998

2,115

Fish stocked in 1999

3,922

Fish stocked in 2000

2,006

Fish stocked in 2001

4,481

Fish stocked in 2002

2,151

Fish stocked in 2003

3,669

Fish stocked in 2004

2,010

Fish stocked in 2005

2,012

Fish stocked in 2006

1,986

Fish stocked in 2007

4,791

Fish stocked in 2008

1,900

Fish stocked in 2009

4,163

Fish stocked in 2010

1,870

Fish stocked in 2011

3,820

Fish stocked in 2012

1,989

Fish stocked in 2013

3,875

Fish stocked in 2014

2,099

Fish stocked in 2015

3,711

Fish stocked in 2016

2,063

Fish stocked in 2017

3,871

Fish stocked in 2018

2,000

Fish stocked in 2019

4,433

Fish stocked in 2020

1,633

Fish stocked in 2021

4,144

Fish stocked in 2022

1,935

Fish stocked in 2023

4,099

Fish stocked in 2024

2,035

Fish stocked in 2025

4,030

Fish stocked in 2026

1,300

Stocking history

All species Rainbow Trout Brook Trout Cutthroat Trout

Source: Wyoming Game and Fish Department.
Date	Species	Quantity	Avg. length	Source
April 2026	Rainbow Trout	1,300	7.9 in	report
October 2025	Rainbow Trout	630	8.8 in	report
June 2025	Brook Trout	230	5.9 in	report
May 2025	Rainbow Trout	1,371	8.2 in	report
May 2025	Brook Trout	1,799	4.4 in	report
September 2024	Rainbow Trout	735	7.8 in	report
April 2024	Rainbow Trout	1,300	8.2 in	report
October 2023	Rainbow Trout	770	7.4 in	report
May 2023	Rainbow Trout	1,301	8.4 in	report
May 2023	Brook Trout	2,028	3.8 in	report
October 2022	Rainbow Trout	763	8.2 in	report
July 2022	Rainbow Trout	522	9.1 in	report
April 2022	Rainbow Trout	650	7.6 in	report
October 2021	Rainbow Trout	703	8.7 in	report
May 2021	Rainbow Trout	1,431	7.9 in	report
May 2021	Brook Trout	2,010	4.4 in	report
September 2020	Rainbow Trout	698	8.8 in	report
June 2020	Rainbow Trout	935	9 in	report
October 2019	Rainbow Trout	632	8.6 in	report
June 2019	Rainbow Trout	1,299	8.7 in	report
April 2019	Brook Trout	2,502	3.6 in	report
October 2018	Rainbow Trout	700	8.9 in	report
May 2018	Rainbow Trout	1,300	8.4 in	report
October 2017	Rainbow Trout	700	10.8 in	report
May 2017	Brook Trout	2,001	4.3 in	report
March 2017	Rainbow Trout	1,170	8.3 in	report
October 2016	Rainbow Trout	763	10 in	report
May 2016	Rainbow Trout	1,300	8.5 in	report
October 2015	Rainbow Trout	711	8.9 in	report
May 2015	Brook Trout	1,800	4.5 in	report
April 2015	Rainbow Trout	1,200	7.9 in	report
October 2014	Rainbow Trout	790	9.2 in	report
April 2014	Rainbow Trout	1,309	8.9 in	report
September 2013	Rainbow Trout	700	8.9 in	report
May 2013	Brook Trout	2,004	4.7 in	report
April 2013	Rainbow Trout	1,171	7.5 in	report
October 2012	Rainbow Trout	754	9.5 in	report
April 2012	Rainbow Trout	1,235	8.4 in	report
October 2011	Rainbow Trout	630	10.7 in	report
September 2011	Brook Trout	2,002	5.6 in	report
May 2011	Rainbow Trout	1,188	9.1 in	report
November 2010	Rainbow Trout	700	8.9 in	report
April 2010	Rainbow Trout	1,170	8.8 in	report
October 2009	Rainbow Trout	1,197	9.5 in	report
May 2009	Rainbow Trout	966	8.4 in	report
May 2009	Brook Trout	2,000	2.9 in	report
September 2008	Cutthroat Trout	990	7.8 in	report
June 2008	Rainbow Trout	462	8.2 in	report
April 2008	Rainbow Trout	448	7.1 in	report
September 2007	Rainbow Trout	594	9.1 in	report
April 2007	Rainbow Trout	1,173	8.1 in	report
April 2007	Brook Trout	3,024	4 in	report
September 2006	Rainbow Trout	638	9.5 in	report
May 2006	Rainbow Trout	500	8.5 in	report
April 2006	Rainbow Trout	848	8.3 in	report
September 2005	Rainbow Trout	300	9.6 in	report
June 2005	Rainbow Trout	304	8.7 in	report
May 2005	Rainbow Trout	400	8.5 in	report
April 2005	Brook Trout	1,008	3.7 in	report
May 2004	Cutthroat Trout	1,008	5.1 in	report
May 2004	Rainbow Trout	486	8.8 in	report
April 2004	Rainbow Trout	516	8.3 in	report
October 2003	Rainbow Trout	552	8.1 in	report
June 2003	Rainbow Trout	396	8.8 in	report
June 2003	Brook Trout	2,021	3.9 in	report
April 2003	Rainbow Trout	700	8.5 in	report
May 2002	Rainbow Trout	1,006	8.9 in	report
April 2002	Rainbow Trout	500	8.3 in	report
April 2002	Rainbow Trout	645	11.8 in	report
September 2001	Cutthroat Trout	486	6.4 in	report
September 2001	Rainbow Trout	401	11.1 in	report
May 2001	Rainbow Trout	1,199	8.9 in	report
May 2001	Brook Trout	1,995	4.2 in	report
April 2001	Rainbow Trout	400	8.8 in	report
September 2000	Rainbow Trout	501	10.2 in	report
May 2000	Rainbow Trout	1,004	8.9 in	report
March 2000	Rainbow Trout	501	9.4 in	report
October 1999	Rainbow Trout	308	10.4 in	report
June 1999	Rainbow Trout	398	8.6 in	report
May 1999	Rainbow Trout	399	8.7 in	report
May 1999	Brook Trout	2,021	3.8 in	report
April 1999	Rainbow Trout	796	8.4 in	report
October 1998	Rainbow Trout	567	9.7 in	report
June 1998	Rainbow Trout	450	8.8 in	report
May 1998	Rainbow Trout	357	9 in	report
April 1998	Rainbow Trout	741	8.6 in	report
October 1997	Rainbow Trout	256	9.2 in	report
June 1997	Cutthroat Trout	112	17.2 in	report
June 1997	Rainbow Trout	440	8.5 in	report
May 1997	Rainbow Trout	714	8.4 in	report
April 1997	Rainbow Trout	396	8.2 in	report
September 1996	Rainbow Trout	306	8.8 in	report
June 1996	Rainbow Trout	480	8.5 in	report
May 1996	Rainbow Trout	212	8.5 in	report
April 1996	Rainbow Trout	264	8.2 in	report
July 1995	Rainbow Trout	380	9 in	report
June 1995	Rainbow Trout	378	8.8 in	report
May 1995	Rainbow Trout	380	8.7 in	report
April 1995	Rainbow Trout	285	8.7 in	report
September 1994	Rainbow Trout	228	8.7 in	report
July 1994	Rainbow Trout	247	8.7 in	report
June 1994	Rainbow Trout	340	9.5 in	report
May 1994	Rainbow Trout	246	8.4 in	report
April 1994	Rainbow Trout	240	8.5 in	report
September 1993	Rainbow Trout	234	8.8 in	report
July 1993	Rainbow Trout	220	8.2 in	report
June 1993	Cutthroat Trout	100	16.3 in	report
June 1993	Rainbow Trout	225	8.2 in	report
June 1993	Brook Trout	2,016	4.7 in	report
May 1993	Rainbow Trout	221	7.2 in	report
April 1993	Rainbow Trout	308	7.7 in	report
June 1992	Rainbow Trout	609	8.4 in	report

Access and facts

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

Nearest lakes

Cook Lake 11.7 mi last stocked September 2026 Sand Creek 12.9 mi last stocked December 1997 Keyhole Reservoir 26.6 mi last stocked June 2026 Black Hills Power and Light Reservoir 32.3 mi last stocked October 2025 L A K Reservoir 43.3 mi last stocked June 2025

Common questions

What fish are at Medicine Lake?

Fishing Medicine Lake usually means Rainbow Trout: Rainbow Trout accounts for 91 of 112 plants on record, ahead of Brook Trout and one more. Rainbow Trout was last stocked April 2026, averaging 8.7 in. Brook Trout was last stocked June 2025, averaging 4.3 in. Cutthroat Trout was last stocked September 2008, averaging 10.6 in.

When is Medicine Lake stocked?

Last stocked April 2026. It is stocked about 3.2 times a year since 1992, most often in April and May.

How big are the fish stocked at Medicine Lake?

Stocked fish average 8.2 in. Rainbow Trout average 8.7 in. Brook Trout average 4.3 in. Cutthroat Trout average 10.6 in.

Which lakes near Medicine Lake were stocked more recently?

Cook Lake (11.7 mi) and Keyhole Reservoir (26.6 mi) were stocked more recently. Cook Lake is also stocked with Rainbow Trout, Cutthroat Trout, and Brook Trout.