Pathfinder Reservoir fishing

Pathfinder Reservoir fishing is stocked with Rainbow Trout, Cutthroat Trout, and Kokanee Salmon on a reservoir. Also recorded: Walleye and Brown Trout. It is stocked about 3.8 times a year since 2015, most often in October and November. Species guides list dawn and dusk for Rainbow Trout and Kokanee Salmon, dawn, dusk, and night for Walleye, and dawn, day, and dusk for Brown Trout.

Pathfinder Reservoir
Photo: Josh Hallett, CC BY-SA 2.0
Last stocked
July 2026
Rainbow Trout
Plants on record
46
Since 2015
Species stocked
3 (+2 also recorded)
Average size
6.1 in
Elevation
5,846 ft

Fish at Pathfinder Reservoir

3 stocked · 2 confirmed present

Rainbow Trout Stocked · 22 plants · last July 2026 Best: dawn, dusk

Last stocked July 2026 · avg 8.3 in · 22 plants

Best: dawn, dusk

Rainbow Trout species guide
Kokanee Salmon Stocked · 13 plants · last May 2026 Best: dawn, dusk

Last stocked May 2026 · avg 2.9 in · 13 plants

Best: dawn, dusk

Kokanee Salmon species guide

Rainbow and cutthroat trout are stocked annually in the reservoir. Notably, Pathfinder Reservoir is home to the only established population of the Macedonian Ohrid Trout (S. letnica) in the United States. (recreation.gov, accessed September 22, 2026)(en.wikipedia.org, accessed September 22, 2026)

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

How Pathfinder Reservoir is stocked

Source: Wyoming Game and Fish Department.

Fish stocked in 2015

125,980

Fish stocked in 2016

100,737

Fish stocked in 2017

97,057

Fish stocked in 2018

142,038

Fish stocked in 2019

252,391

Fish stocked in 2020

230,976

Fish stocked in 2021

243,969

Fish stocked in 2022

262,983

Fish stocked in 2023

279,278

Fish stocked in 2024

322,573

Fish stocked in 2025

316,539

Fish stocked in 2026

132,285

Stocking history

Source: Wyoming Game and Fish Department.
Date Species Quantity Avg. length Source
July 2026Rainbow Trout1548.9 inreport
June 2026Rainbow Trout17,8648.1 inreport
May 2026Kokanee Salmon100,0702.8 inreport
May 2026Cutthroat Trout14,1975.7 inreport
November 2025Rainbow Trout115,5518.6 inreport
November 2025Cutthroat Trout53,4194.4 inreport
May 2025Rainbow Trout21,2908.4 inreport
May 2025Kokanee Salmon102,6453 inreport
May 2025Rainbow Trout23,6346 inreport
November 2024Rainbow Trout43,4458.5 inreport
October 2024Rainbow Trout110,8348.3 inreport
October 2024Cutthroat Trout57,3224.1 inreport
May 2024Rainbow Trout4,7368.7 inreport
May 2024Kokanee Salmon106,2362.7 inreport
November 2023Rainbow Trout120,5607.9 inreport
October 2023Cutthroat Trout45,0733.9 inreport
August 2023Cutthroat Trout58,9192.8 inreport
June 2023Kokanee Salmon11,0133 inreport
May 2023Kokanee Salmon43,7132.7 inreport
November 2022Rainbow Trout147,8248 inreport
October 2022Cutthroat Trout49,9923.9 inreport
June 2022Kokanee Salmon65,1672.3 inreport
November 2021Rainbow Trout109,9558.4 inreport
October 2021Rainbow Trout36,2827.4 inreport
October 2021Cutthroat Trout47,9013 inreport
June 2021Kokanee Salmon13,5482.5 inreport
May 2021Kokanee Salmon36,2832.9 inreport
November 2020Rainbow Trout140,7508.2 inreport
September 2020Rainbow Trout14,2987.4 inreport
June 2020Rainbow Trout7,7008.9 inreport
May 2020Kokanee Salmon50,0282.8 inreport
April 2020Kokanee Salmon18,2003 inreport
November 2019Rainbow Trout6,8048.8 inreport
October 2019Cutthroat Trout26,4607.3 inreport
October 2019Rainbow Trout114,9428.9 inreport
July 2019Kokanee Salmon41,2683.1 inreport
April 2019Kokanee Salmon62,9172.6 inreport
October 2018Cutthroat Trout8,9258.2 inreport
October 2018Rainbow Trout90,0149.2 inreport
July 2018Rainbow Trout11,0605 inreport
June 2018Kokanee Salmon32,0393.8 inreport
November 2017Cutthroat Trout10,9488.9 inreport
November 2017Rainbow Trout86,10910 inreport
November 2016Rainbow Trout89,56810.4 inreport
October 2016Cutthroat Trout11,1699.4 inreport
October 2015Rainbow Trout125,9808.3 inreport

Access and facts

Water type
reservoir
Nearest town
Casper, WY
Boat ramp
Yes
ADA accessible
Yes
Facilities
camping, restrooms, dock

From Alcova, take WY 220 west 6 miles, then Pathfinder Road (County Road 409) south to the Marina Ramp near the dam. Bishop Point on the Sweetwater Arm is 4 miles down a dirt road that ruts and turns to mud after storms. Natrona County runs five first-come campgrounds around the lake.

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 Pathfinder Reservoir

Photo of Pathfinder Reservoir
Josh Hallett, CC BY-SA 2.0
Photo of Pathfinder Reservoir
U.S. Bureau of Reclamation photographer, Public domain
Photo of Pathfinder Reservoir
U.S. National Archives and Records Administration, Public domain

Nearest lakes

Alcova Reservoir 8.8 mi last stocked July 2026 Gray Reef Reservoir 10.3 mi last stocked April 2026 Dome Rock Reservoir 11.6 mi last stocked April 2026 Beulah Belle Lake 16 mi last stocked April 2026 Seminoe Reservoir 21.8 mi last stocked November 2025

Common questions

What fish are at Pathfinder Reservoir?

Fishing Pathfinder Reservoir usually means Rainbow Trout: Rainbow Trout accounts for 22 of 46 plants on record, ahead of Kokanee Salmon and one more. Rainbow Trout was last stocked July 2026, averaging 8.3 in. Kokanee Salmon was last stocked May 2026, averaging 2.9 in. Cutthroat Trout was last stocked May 2026, averaging 5.6 in. Walleye and Brown Trout are recorded here outside the stocking reports.

When is Pathfinder Reservoir stocked?

Last stocked July 2026. It is stocked about 3.8 times a year since 2015, most often in October and November.

How big are the fish stocked at Pathfinder Reservoir?

Stocked fish average 6.1 in. Rainbow Trout average 8.3 in. Kokanee Salmon average 2.9 in. Cutthroat Trout average 5.6 in.

How do you get on Pathfinder Reservoir?

There is a boat ramp and it is ADA accessible. The nearest town is Casper, WY. Facilities include camping, restrooms, and dock. From Alcova, take WY 220 west 6 miles, then Pathfinder Road (County Road 409) south to the Marina Ramp near the dam. Bishop Point on the Sweetwater Arm is 4 miles down a dirt road that ruts and turns to mud after storms. Natrona County runs five first-come campgrounds around the lake.

Sources (9) +