Grayrocks Reservoir fishing

Grayrocks Reservoir fishing is stocked with Channel Catfish, Tiger Muskie, Rainbow Trout, Walleye, and Crappie on a reservoir. Also recorded: Smallmouth Bass, Gizzard Shad, Largemouth Bass, and Yellow Perch. It is stocked about 1.7 times a year since 1991, most often in June and July. Species guides list dusk and night for Channel Catfish, dawn and dusk for Rainbow Trout, Smallmouth Bass, and Largemouth Bass, and dawn, dusk, and night for Walleye and Crappie.

Grayrocks Reservoir
Photo: Tony Webster, CC BY 2.0
Last stocked
June 2026
Walleye
Plants on record
60
Since 1991
Species stocked
5 (+4 also recorded)
Average size
3.4 in
Elevation
4,407 ft

Fish at Grayrocks Reservoir

5 stocked · 4 confirmed present

Walleye Stocked · 31 plants · last June 2026 Best: dawn, dusk, night

Last stocked June 2026 · avg 1.3 in · 31 plants

Best: dawn, dusk, night

Walleye species guide
Channel Catfish Stocked · 22 plants · last May 2025 Best: dusk, night

Last stocked May 2025 · avg 6 in · 22 plants

Best: dusk, night

Channel Catfish species guide
Crappie Stocked · 4 plants · last August 2025 Best: dawn, dusk, night

Last stocked August 2025 · avg 2 in · 4 plants

Best: dawn, dusk, night

Crappie species guide
Tiger Muskie Stocked · 2 plants · last October 2012

Last stocked October 2012 · avg 7.5 in · 2 plants

Tiger Muskie species guide
Rainbow Trout Stocked · 1 plant · last April 1994 Best: dawn, dusk

Last stocked April 1994 · avg 8.5 in · 1 plant

Best: dawn, dusk

Rainbow Trout species guide

How Grayrocks Reservoir is stocked

Source: Wyoming Game and Fish Department.

No plants recorded in 2013.

Fish stocked in 1991

26,855

Fish stocked in 1992

13,809

Fish stocked in 1993

13,046

Fish stocked in 1994

20,100

Fish stocked in 1995

66,965

Fish stocked in 1996

159,180

Fish stocked in 1997

411,700

Fish stocked in 1998

512,416

Fish stocked in 1999

208,161

Fish stocked in 2000

406,662

Fish stocked in 2001

412,592

Fish stocked in 2002

408,800

Fish stocked in 2003

448,600

Fish stocked in 2004

281,900

Fish stocked in 2005

214,722

Fish stocked in 2006

206,856

Fish stocked in 2007

234,002

Fish stocked in 2008

208,038

Fish stocked in 2009

555,500

Fish stocked in 2010

400,900

Fish stocked in 2011

269,908

Fish stocked in 2012

435,770

Fish stocked in 2014

354,300

Fish stocked in 2015

279,800

Fish stocked in 2016

439,791

Fish stocked in 2017

399,998

Fish stocked in 2018

408,609

Fish stocked in 2019

414,000

Fish stocked in 2020

374,900

Fish stocked in 2021

407,922

Fish stocked in 2022

370,490

Fish stocked in 2023

297,650

Fish stocked in 2024

460,284

Fish stocked in 2025

285,411

Fish stocked in 2026

206,850

Stocking history

Source: Wyoming Game and Fish Department.
Date Species Quantity Avg. length Source
June 2026Walleye206,8501.2 inreport
August 2025Crappie54,1001.9 inreport
June 2025Walleye227,4711.3 inreport
May 2025Channel Catfish3,8404.9 inreport
October 2024Crappie57,4202.3 inreport
June 2024Walleye400,1641.4 inreport
April 2024Channel Catfish2,7007 inreport
June 2023Walleye297,6501.5 inreport
October 2022Crappie44,5902.1 inreport
June 2022Walleye325,9001.5 inreport
June 2021Walleye407,9221.4 inreport
June 2020Walleye374,9001.4 inreport
November 2019Crappie13,5001.7 inreport
June 2019Walleye400,5001.3 inreport
June 2018Walleye408,6091.4 inreport
June 2017Walleye399,9981.4 inreport
June 2016Walleye433,2931.3 inreport
May 2016Channel Catfish6,4985 inreport
June 2015Walleye279,8001.5 inreport
July 2014Walleye347,7991.3 inreport
May 2014Channel Catfish6,5014.7 inreport
October 2012Tiger Muskie4,7797.5 inreport
June 2012Walleye424,4921.4 inreport
April 2012Channel Catfish6,4994.8 inreport
July 2011Walleye263,4081.2 inreport
April 2011Channel Catfish6,5005.6 inreport
June 2010Walleye400,9001.2 inreport
July 2009Walleye555,5001.3 inreport
October 2008Channel Catfish6,5145 inreport
July 2008Walleye201,5241.3 inreport
October 2007Channel Catfish2,0025.4 inreport
July 2007Walleye232,0001.1 inreport
June 2006Walleye206,8561.4 inreport
October 2005Channel Catfish2,7225.7 inreport
July 2005Walleye212,0001.3 inreport
October 2004Channel Catfish6,5005.2 inreport
July 2004Walleye275,4001.1 inreport
October 2003Channel Catfish7,0004 inreport
July 2003Walleye441,6001.3 inreport
July 2002Walleye408,8001.4 inreport
July 2001Channel Catfish6,5005.2 inreport
June 2001Walleye406,0921.1 inreport
October 2000Channel Catfish6,5064.2 inreport
June 2000Walleye400,1561.3 inreport
June 1999Walleye200,6551.3 inreport
May 1999Channel Catfish7,5067.3 inreport
June 1998Walleye499,4161.2 inreport
May 1998Channel Catfish13,0006.8 inreport
July 1997Walleye395,2001.3 inreport
May 1997Channel Catfish16,5006.8 inreport
June 1996Walleye150,1801.2 inreport
May 1996Channel Catfish9,0005.6 inreport
June 1995Walleye53,9651.8 inreport
May 1995Channel Catfish13,0006.1 inreport
April 1994Rainbow Trout5,0008.5 inreport
April 1994Channel Catfish15,1007 inreport
June 1993Channel Catfish13,0467.9 inreport
June 1992Channel Catfish13,8098.8 inreport
August 1991Tiger Muskie15,9867.5 inreport
June 1991Channel Catfish10,8699.4 inreport

Access and facts

Water type
reservoir
Nearest town
Wheatland, WY
Facilities
restrooms, camping, dock

Nine miles northeast of Wheatland. Twelve parking areas ring the 3,500-acre reservoir for bank fishing and camping, with three boat ramps, handicap-accessible boat docks, and accessible comfort stations. The access road and parking areas aren't plowed in winter.

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 Wyoming Game and Fish Department before you go.

About Grayrocks Reservoir

Photo of Grayrocks Reservoir
Tony Webster, CC BY 2.0
Photo of Grayrocks Reservoir
Tony Webster, CC BY 2.0

Nearest lakes

Chugwater Creek 5.5 mi last stocked May 2012 Festo Lake 14 mi last stocked August 2022 Rock Lake 18.4 mi last stocked October 2024 Springer Reservoir 26.2 mi last stocked June 2012 Glendo Reservoir 30.2 mi last stocked April 2026

Common questions

What fish are at Grayrocks Reservoir?

Fishing Grayrocks Reservoir usually means Walleye: Walleye accounts for 31 of 60 plants on record, ahead of Channel Catfish and 3 more. Walleye was last stocked June 2026, averaging 1.3 in. Channel Catfish was last stocked May 2025, averaging 6 in. Crappie was last stocked August 2025, averaging 2 in. Tiger Muskie was last stocked October 2012, averaging 7.5 in. 1 more species is on the stocking report. Smallmouth Bass, Gizzard Shad, Largemouth Bass, and Yellow Perch are recorded here outside the stocking reports.

When is Grayrocks Reservoir stocked?

Last stocked June 2026. It is stocked about 1.7 times a year since 1991, most often in June and July. No plants recorded in 2013.

How big are the fish stocked at Grayrocks Reservoir?

Stocked fish average 3.4 in. Walleye average 1.3 in. Channel Catfish average 6 in. Crappie average 2 in. Tiger Muskie average 7.5 in.

How do you get on Grayrocks Reservoir?

The nearest town is Wheatland, WY. Facilities include restrooms, camping, and dock. Nine miles northeast of Wheatland. Twelve parking areas ring the 3,500-acre reservoir for bank fishing and camping, with three boat ramps, handicap-accessible boat docks, and accessible comfort stations. The access road and parking areas aren't plowed in winter.

Sources (5) +