Boysen Reservoir fishing

Boysen Reservoir fishing is stocked with Cutthroat Trout, Rainbow Trout, and Kokanee Salmon on a reservoir. Also recorded: Walleye, Sauger, Yellow Perch, Crappie, Burbot (ling), Brown Trout, and 9 more. It is stocked about 4.4 times a year since 2020, most often in May and October. Species guides list dawn and dusk for Rainbow Trout, Kokanee Salmon, and Largemouth Bass, dawn, dusk, and night for Walleye and Crappie, and dawn, day, dusk, and night for Sauger.

Boysen Reservoir
Photo: Charles Willgren, CC BY 2.0
Last stocked
May 2026
Kokanee Salmon
Plants on record
31
Since 2020
Species stocked
3 (+15 also recorded)
Average size
6.1 in
Elevation
4,726 ft

Fish at Boysen Reservoir

3 stocked · 15 confirmed present

Rainbow Trout Stocked · 18 plants · last October 2025 Best: dawn, dusk

Last stocked October 2025 · avg 7.8 in · 18 plants

Best: dawn, dusk

Rainbow Trout species guide
Kokanee Salmon Stocked · 8 plants · last May 2026 Best: dawn, dusk

Last stocked May 2026 · avg 3.9 in · 8 plants

Best: dawn, dusk

Kokanee Salmon species guide
Sauger Confirmed present Best: dawn, day, dusk, night

Best: dawn, day, dusk, night

Sauger species guide

Boysen Reservoir is a popular sporting area with fishing available year-round. Anglers can find numerous species of fish, including walleye, perch, crappie, channel catfish, rainbow trout, brown trout, and ling. The reservoir spans approximately 20,000 surface acres and offers good access through shoreline roads and boat ramps. (en.wikipedia.org, accessed September 22, 2026)(usbr.gov, accessed September 22, 2026)

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

How Boysen Reservoir is stocked

Source: Wyoming Game and Fish Department.

Badwater Creek (4.1 mi) and Ocean Lake (22.9 mi) were stocked more recently.

Fish stocked in 2020

110,637

Fish stocked in 2021

194,088

Fish stocked in 2022

205,144

Fish stocked in 2023

238,963

Fish stocked in 2024

179,891

Fish stocked in 2025

169,448

Fish stocked in 2026

59,999

Stocking history

Source: Wyoming Game and Fish Department.
Date Species Quantity Avg. length Source
May 2026Kokanee Salmon59,9992.8 inreport
October 2025Rainbow Trout89,2017.6 inreport
October 2025Rainbow Trout20,7619.1 inreport
May 2025Kokanee Salmon59,4862.5 inreport
December 2024Kokanee Salmon2,6009.5 inreport
October 2024Rainbow Trout63,8798.1 inreport
October 2024Rainbow Trout43,2858 inreport
May 2024Kokanee Salmon70,1272.4 inreport
October 2023Rainbow Trout4947.5 inreport
October 2023Cutthroat Trout24,7503.9 inreport
September 2023Rainbow Trout75,8046.9 inreport
September 2023Rainbow Trout29,7308.6 inreport
August 2023Rainbow Trout5,0066.3 inreport
May 2023Kokanee Salmon103,1793.1 inreport
November 2022Rainbow Trout40,5758.1 inreport
November 2022Rainbow Trout9,9902.8 inreport
November 2022Cutthroat Trout23,3752.8 inreport
October 2022Rainbow Trout31,2017.3 inreport
October 2022Cutthroat Trout11,0244.2 inreport
September 2022Rainbow Trout5,3448.4 inreport
September 2022Rainbow Trout54,8358.3 inreport
July 2022Kokanee Salmon28,8003.8 inreport
November 2021Rainbow Trout14,9358.4 inreport
October 2021Rainbow Trout75,1828.4 inreport
October 2021Rainbow Trout28,7718.5 inreport
September 2021Cutthroat Trout30,0792.3 inreport
May 2021Kokanee Salmon31,4014.1 inreport
April 2021Kokanee Salmon13,7203.3 inreport
October 2020Rainbow Trout64,3638.7 inreport
October 2020Rainbow Trout23,5608.8 inreport
October 2020Cutthroat Trout22,7143.3 inreport

Access and facts

Water type
reservoir
Nearest town
Shoshoni, WY
Facilities
restrooms, camping

Boysen State Park, 10 miles north of Shoshoni on US 20. About 19,560 surface acres and 76 miles of shoreline, with accessible restrooms, accessible boat ramps, six campgrounds, and good access via shoreline roads.

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 Boysen Reservoir

Anglers should be aware that Boysen Reservoir experiences a cold-semi arid climate. This region has vast temperature differences throughout the year, with summers averaging highs in the low 90s and winters averaging lows in the single digits. (en.wikipedia.org, accessed September 22, 2026)

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

Photo of Boysen Reservoir
Charles Willgren, CC BY 2.0
Photo of Boysen Reservoir
USFWS Mountain-Prairie, Public domain
Photo of Boysen Reservoir
Paul Hermans, CC BY-SA 4.0

Nearest lakes

Lake Cameahwait 3.4 mi last stocked September 2020 Badwater Creek 4.1 mi last stocked July 2026 Ocean Lake 22.9 mi last stocked June 2026 Burlington Reservoir 25.3 mi last stocked May 2025 Owl Creek 28 mi last stocked August 1989

Common questions

What fish are at Boysen Reservoir?

Fishing Boysen Reservoir usually means Rainbow Trout: Rainbow Trout accounts for 18 of 31 plants on record, ahead of Kokanee Salmon and one more. Rainbow Trout was last stocked October 2025, averaging 7.8 in. Kokanee Salmon was last stocked May 2026, averaging 3.9 in. Cutthroat Trout was last stocked October 2023, averaging 3.3 in. Walleye, Sauger, Yellow Perch, and Crappie, plus 11 more are recorded here outside the stocking reports.

When is Boysen Reservoir stocked?

Last stocked May 2026. It is stocked about 4.4 times a year since 2020, most often in May and October.

How big are the fish stocked at Boysen Reservoir?

Stocked fish average 6.1 in. Rainbow Trout average 7.8 in. Kokanee Salmon average 3.9 in. Cutthroat Trout average 3.3 in.

How do you get on Boysen Reservoir?

The nearest town is Shoshoni, WY. Facilities include restrooms and camping. Boysen State Park, 10 miles north of Shoshoni on US 20. About 19,560 surface acres and 76 miles of shoreline, with accessible restrooms, accessible boat ramps, six campgrounds, and good access via shoreline roads.

Which lakes near Boysen Reservoir were stocked more recently?

Badwater Creek (4.1 mi) and Ocean Lake (22.9 mi) were stocked more recently.

Sources (5) +