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  1. Home
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  3. /Pathfinder Reservoir

Wyoming

Pathfinder Reservoir

Wyoming·North Platte Basin·42.42° N, 106.91° W
Log an outing

Solunar · next 7 days

About Pathfinder Reservoir

Pathfinder Reservoir fills the North Platte and Sweetwater valleys at about 5,800 feet southwest of Casper, one of Wyoming's oldest and largest reservoirs, finished by Reclamation in 1909. It holds walleye, rainbows, browns and cutthroat, and it sits between the Miracle Mile above and Alcova and Gray Reef below.

Trout come shallow near the North Platte and Sweetwater inlets in spring and fall, where streamers and leeches take them; the Miracle Mile's lower end draws big fish up from the lake in spring. Summer is walleye season. The lake is big, open and windy. Wyoming's general limits apply, and the North Platte below Kortes Dam is single-point barbless hooks only.

Species

  • Walleye
    Abundant · May-Jun, Sep · 14-22"

    The main fishery.

  • Rainbow Trout
    Common · Apr-May, Oct · 14-22"

    Near the inlets in spring and fall.

  • Brown Trout
    Occasional · Oct · 16-26"

    Big browns in fall.

  • Cutthroat Trout
    Occasional · Apr-May · 14-20"

    Cutthroat near the inlets.

SpeciesAbundanceBest SeasonSize
WalleyeAbundantMay-Jun, Sep14-22"
Rainbow TroutCommonApr-May, Oct14-22"
Brown TroutOccasionalOct16-26"
Cutthroat TroutOccasionalApr-May14-20"

Areas

3 areas

North Platte arm

BoatIntermediateRainbow Trout

The south arm where the North Platte comes in from the Miracle Mile.

Best for: Big trout in spring

Sweetwater arm

BoatIntermediateRainbow Trout

The west arm where the Sweetwater comes in.

Best for: Trout and walleye

Dam end

BoatIntermediate

The deeper water near Pathfinder Dam.

Best for: Walleye in summer

Access

  • Northeast shore rampBoat ramp

At a glance

Ideal water temp
50–65°F
Best seasons

Spring and fall for trout near the inlets, and summer for walleye.

Regulations

Managed by the Wyoming Game and Fish Department under the general creel limits. Confirm the current regulations before fishing.

  • Open all year
  • Trout limit 6 in lakes, no more than 6 trout a day in all waters combined
  • Walleye limit 6
  • The North Platte from Kortes Dam down to the reservoir (the Miracle Mile) is single-point barbless hooks only
  • Valid Wyoming fishing license required for anglers 14 and older, plus a conservation stamp

Source: Wyoming Game and Fish Department. Regulations change annually. Verify before fishing.

Getting there

Alcova, WY

About 45 min from Casper

Fly shops

  • Platte River Fly ShopCasper
  • Wyoming AnglersCasper

Camping: Natrona County campgrounds on the lake, and lodging in Alcova and Casper.

Ramps at the county campgrounds. Wind builds fast on the open water.

No recent fishing reports for Pathfinder Reservoir

We aggregate reports from local fly shops, guides, and lodges as they publish. Check back, or browse the shops on the Guide tab.

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Fishing
Fair
Wind
15mph NNE
Gusts 22 mph
Water temp
—
Level
18% full
Filling this week

Sub-freezing temperatures between 26 and 30 degrees possible. Localized temperatures as low as 20 degrees are possible in the valleys of Carbon and Albany counties.

Freeze Watch · 24 areas · Fri 12:00 AM – Fri 9:00 AM · NWS Cheyenne WY
What this means

A watch or advisory means conditions are favorable for the event. It has not started, so treat it as a reason to check again before you drive out.

WHERE...Portions of panhandle Nebraska and east central, south central, and southeast Wyoming.

WHEN...From late Thursday night through Friday morning.

IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.

Read the full product from NWS Cheyenne WY

Fishing conditions

Fair
PoorSlowFairGoodPrime
Limited data · no water temperature
How we rate this
Thu
10/15
—
MDE
Fri
10/16
—
MDE
Sat
10/17
—
MDE
Sun
10/18
—
MDE
Mon
10/19
—
MDE

MmorningDmiddayEevening

poorprime

Today
evening2:29p – 7:29pFairWindy, gusts to 21 mphRain comingRising pressure
Measured
Filling

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