Koosharem Reservoir fishing

Koosharem Reservoir fishing is stocked with Cutthroat Trout, Rainbow Trout, Splake, Tiger Trout, Brook Trout, Tiger Muskie, and 1 more on a reservoir. Also recorded: Utah Chub and Rainbow x Cutthroat Hybrid. It is stocked about 7.6 times a year since 2016, most often in March and April. Species guides list dawn and dusk for Rainbow Trout and Tiger Trout and dawn, day, and dusk for Brook Trout and Brown Trout.

Koosharem Reservoir
Photo: Famartin, CC BY-SA 3.0
Last stocked
October 1, 2026
· Rainbow Trout
Plants on record
84
Since 2016
Species stocked
7 (+2 also recorded)
Average size
7.4 in
Elevation
6,995 ft

Fish at Koosharem Reservoir

7 stocked · 2 confirmed present

Around the dates Koosharem Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 40.3°F in April, 31.5°F in March, 50.6°F in May, 46.4°F in October. That is air temperature at these coordinates, not water temperature. Open-Meteo

Rainbow Trout Stocked · 43 plants · last October 1, 2026 Best: dawn, dusk

Last stocked October 1, 2026 · avg 9.3 in · 43 plants

Best: dawn, dusk

Rainbow Trout species guide
Cutthroat Trout Stocked · 15 plants · last March 27, 2025

Last stocked March 27, 2025 · avg 7.9 in · 15 plants

Cutthroat Trout species guide
Tiger Trout Stocked · 11 plants · last October 20, 2025 Best: dawn, dusk

Last stocked October 20, 2025 · avg 4.1 in · 11 plants

Best: dawn, dusk

Tiger Trout species guide
Splake Stocked · 7 plants · last June 9, 2025

Last stocked June 9, 2025 · avg 3.2 in · 7 plants

Splake species guide
Brook Trout Stocked · 5 plants · last October 20, 2025 Best: dawn, day, dusk

Last stocked October 20, 2025 · avg 4.9 in · 5 plants

Best: dawn, day, dusk

Brook Trout species guide
Tiger Muskie Stocked · 2 plants · last April 20, 2021

Last stocked April 20, 2021 · avg 1.1 in · 2 plants

Tiger Muskie species guide
Brown Trout Stocked · 1 plant · last October 1, 2026 Best: dawn, day, dusk

Last stocked October 1, 2026 · avg 3.8 in · 1 plant

Best: dawn, day, dusk

Brown Trout species guide

Koosharem Reservoir is a small, shallow lake where fishing can be enjoyed year-round. This reservoir is stocked with trout, and past surveys indicate that cutthroat and rainbow trout are showing better growth and condition than in previous years. Anglers might consider tackle imitating chubs, such as rapalas, lures, or large streamers. Cut bait or frozen minnows are also worth trying. (blm.gov, accessed September 22, 2026)

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

How Koosharem Reservoir is stocked

Source: Utah Division of Wildlife Resources.

Fish stocked in 2016

18,638

Fish stocked in 2017

36,141

Fish stocked in 2018

40,079

Fish stocked in 2019

66,642

Fish stocked in 2020

39,461

Fish stocked in 2021

13,547

Fish stocked in 2022

11,100

Fish stocked in 2023

24,144

Fish stocked in 2024

18,368

Fish stocked in 2025

26,856

Fish stocked in 2026

16,593

Stocking history

Source: Utah Division of Wildlife Resources.
Date Species Quantity Avg. length Source
October 1, 2026Rainbow Trout8,5703.48 inreport
October 1, 2026Brown Trout2,0213.82 inreport
March 3, 2026Rainbow Trout3,0019.32 inreport
March 3, 2026Rainbow Trout3,0019.32 inreport
November 5, 2025Rainbow Trout1,94710.39 inreport
October 21, 2025Rainbow Trout3,0097.85 inreport
October 20, 2025Tiger Trout1,9805.46 inreport
October 20, 2025Rainbow Trout6,0004.92 inreport
October 20, 2025Brook Trout83513.27 inreport
June 9, 2025Splake2,0023.5 inreport
April 9, 2025Rainbow Trout1,5159.63 inreport
April 2, 2025Rainbow Trout2,2409.63 inreport
April 2, 2025Rainbow Trout2,2409.63 inreport
March 27, 2025Cutthroat Trout5,0888.14 inreport
October 28, 2024Tiger Trout2,0505.59 inreport
July 11, 2024Tiger Trout2,7603.28 inreport
July 8, 2024Splake2,0002.67 inreport
May 15, 2024Rainbow Trout1,6799.55 inreport
May 7, 2024Rainbow Trout2,1629.55 inreport
May 7, 2024Rainbow Trout2,1629.55 inreport
March 18, 2024Cutthroat Trout5,5558.22 inreport
October 16, 2023Tiger Trout2,0015.92 inreport
August 17, 2023Brook Trout2,6713.15 inreport
August 17, 2023Brook Trout5,3843.34 inreport
July 5, 2023Splake2,0073.65 inreport
May 10, 2023Rainbow Trout2,0039.53 inreport
May 3, 2023Rainbow Trout2,1989.48 inreport
April 26, 2023Rainbow Trout1,8009.44 inreport
April 13, 2023Cutthroat Trout4,1809.36 inreport
April 13, 2023Cutthroat Trout1,9009.36 inreport
April 5, 2022Rainbow Trout1,05010 inreport
April 5, 2022Rainbow Trout1,05010 inreport
April 1, 2022Rainbow Trout1,9509.87 inreport
April 1, 2022Rainbow Trout1,9509.87 inreport
March 28, 2022Cutthroat Trout5,1008.24 inreport
May 4, 2021Rainbow Trout7249.42 inreport
May 4, 2021Rainbow Trout7249.42 inreport
May 4, 2021Rainbow Trout7249.42 inreport
May 4, 2021Rainbow Trout7249.42 inreport
May 4, 2021Rainbow Trout7249.42 inreport
April 20, 2021Tiger Muskie1,0001.05 inreport
April 20, 2021Rainbow Trout2,3769.44 inreport
March 29, 2021Cutthroat Trout5,1528.11 inreport
March 25, 2021Rainbow Trout70415.36 inreport
March 25, 2021Rainbow Trout69515.36 inreport
July 6, 2020Tiger Trout1,9953.69 inreport
June 15, 2020Splake2,0003.05 inreport
April 28, 2020Tiger Muskie3001.19 inreport
April 28, 2020Tiger Trout3001.19 inreport
April 22, 2020Rainbow Trout90010.56 inreport
April 22, 2020Rainbow Trout90010.56 inreport
April 22, 2020Rainbow Trout1,00311.02 inreport
March 31, 2020Rainbow Trout19,2563.99 inreport
March 18, 2020Cutthroat Trout6,7328.26 inreport
March 17, 2020Rainbow Trout3,0019.95 inreport
March 17, 2020Rainbow Trout3,0749.95 inreport
June 11, 2019Tiger Trout1,9872.54 inreport
April 15, 2019Tiger Trout25,6962.58 inreport
April 11, 2019Cutthroat Trout6,7505.96 inreport
March 29, 2019Rainbow Trout1,6839.99 inreport
March 29, 2019Rainbow Trout3,3189.99 inreport
March 26, 2019Rainbow Trout17,3285.45 inreport
March 26, 2019Rainbow Trout9,8805.45 inreport
June 5, 2018Splake2,0232.91 inreport
April 4, 2018Tiger Trout24,0002.07 inreport
March 27, 2018Rainbow Trout2,0159.95 inreport
March 27, 2018Rainbow Trout3,9829.95 inreport
March 26, 2018Cutthroat Trout3,1088.07 inreport
March 26, 2018Cutthroat Trout1,9538.07 inreport
March 26, 2018Cutthroat Trout2,9988.07 inreport
November 28, 2017Cutthroat Trout16,0004.47 inreport
August 10, 2017Splake2,0123.39 inreport
August 2, 2017Tiger Trout1,9946.02 inreport
June 26, 2017Brook Trout9122.39 inreport
June 26, 2017Brook Trout1,2022.55 inreport
April 11, 2017Rainbow Trout3,99910 inreport
April 11, 2017Cutthroat Trout8,0108.18 inreport
April 5, 2017Rainbow Trout2,0128.71 inreport
October 13, 2016Tiger Trout2,0257.07 inreport
August 10, 2016Splake2,0263.55 inreport
April 20, 2016Rainbow Trout3,0068.84 inreport
April 20, 2016Rainbow Trout3,0018.68 inreport
April 14, 2016Cutthroat Trout6,2408.3 inreport
April 14, 2016Cutthroat Trout2,3408.3 inreport

Access and facts

Water type
reservoir
Nearest town
Koosharem
Shore access
Yes
Float tube friendly
Yes
Facilities
camping, restrooms

Beside UT-24 about 25 miles southeast of Richfield. Much of the shore is private; public access is a BLM strip on the west shore marked by a kiosk and vault toilet, with some primitive camping. Float tubes, pontoons, canoes and small boats hand launch there, but the shallow shore hampers trailers.

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 Utah Division of Wildlife Resources before you go.

About Koosharem Reservoir

Photo of Koosharem Reservoir
Famartin, CC BY-SA 3.0

Nearest lakes

Fish Lake 8.2 mi last stocked September 7, 2026 Manning Meadow Reservoir 14.5 mi last stocked September 14, 2026 Otter Creek Reservoir 31.2 mi last stocked April 14, 2026 Piute Reservoir 31.7 mi last stocked May 24, 2026 Palisade Reservoir 43.2 mi last stocked June 9, 2026

Camping near Koosharem Reservoir

Campgrounds within 15 miles of Koosharem Reservoir's mapped point, nearest first: Doctor Creek Campground (7.4 miles), Mackinaw Campground (7.7 miles), Bowery Creek Campground (7.9 miles), and Frying Pan Campground (9.2 miles), each with its own campground page on campgroundsdb.com.

Straight-line distances.

Common questions

What fish are at Koosharem Reservoir?

Fishing Koosharem Reservoir usually means Rainbow Trout: Rainbow Trout accounts for 43 of 84 plants on record, ahead of Cutthroat Trout and 5 more. Rainbow Trout was last stocked October 1, 2026, averaging 9.3 in. Cutthroat Trout was last stocked March 27, 2025, averaging 7.9 in. Tiger Trout was last stocked October 20, 2025, averaging 4.1 in. Splake was last stocked June 9, 2025, averaging 3.2 in. 3 more species are on the stocking report. Utah Chub and Rainbow x Cutthroat Hybrid are recorded here outside the stocking reports.

When is Koosharem Reservoir stocked?

Last stocked October 1, 2026. It is stocked about 7.6 times a year since 2016, most often in March and April.

How big are the fish stocked at Koosharem Reservoir?

Stocked fish average 7.4 in. Rainbow Trout average 9.3 in. Cutthroat Trout average 7.9 in. Tiger Trout average 4.1 in. Splake average 3.2 in.

How do you get on Koosharem Reservoir?

Shore fishing is available and it is float tube friendly. The nearest town is Koosharem. Facilities include camping and restrooms. Beside UT-24 about 25 miles southeast of Richfield. Much of the shore is private; public access is a BLM strip on the west shore marked by a kiosk and vault toilet, with some primitive camping. Float tubes, pontoons, canoes and small boats hand launch there, but the shallow shore hampers trailers.

Sources (4) +