Montana lake guide

Glen Lake Fishing

Glen Lake east of Eureka is a Western District fishery with public FWP access, an official bathymetric survey map, and documented kokanee, rainbow trout and yellow perch opportunity.

Boat access
LocationLincoln County, Montana
Primary targetsKokanee, Rainbow Trout, Yellow Perch
Best seasonSpring through fall
Lake size301.1 acres
Max depthN/A on official Montana FWP bathymetric map
Access1 documented option

Guide reviewed

Start here

Plan Glen Lake in 60 seconds

Make the trip decisions first. Use the deeper lake science, surveys, stocking history, and source material below when you want more detail.

1. Start with access

Compare 1 documented access option before you commit to a shoreline or launch.

View access →
2. Choose the target

Start with the documented species list, then open a species guide for seasonal behavior and practical tactics.

Choose a fish →
3. Read the bottom

Use verified depth information to identify basins, breaks, points, channels, and other structure before you fish.

View depth information →
4. Check conditions

Wind, rain, temperature, and changing access can alter the plan quickly. Check current conditions before leaving.

Check conditions →
Lake details

Depth, size & key facts

Average depth19 feet
Max depthN/A on official Montana FWP bathymetric map
Elevationabout 2,969 feet
Public launches1
Summer cautionHeat

Lake depth map

Depth contours may take a little time to load. Sorry for the inconvenience.

Source: Montana Fish, Wildlife & Parks. Historical survey data may not reflect current water levels or underwater hazards. Informational only; not for navigation.

Trip conditions

Current conditions

Loading the local forecast. Check access and official notices before leaving.

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Four day outlook
Official depth chart
Official static bathymetry Interactive contours available

Glen Lake official depth chart

Open the official depth publication to inspect the lake chart. This static survey complements interactive contours when available and should not be used as a navigation chart.

Fishery record

Documented fish species

These species come from the lake record. Open a species guide for identification, seasonal behavior, and practical tactics without confusing general species guidance with a lake-specific survey result.

Browse all species
Stocking information

Glen Lake Fish Stocking

Recent stocking information summarized from Montana Fish, Wildlife & Parks. Dates and quantities can change. Always verify current fishing rules with the official agency before fishing.

Official stocking history Five-year summary · 2022–2026
View agency record
Fish stocked74,275
Stocking events12
Years stocked5
Species stocked2

Species in this period: Kokanee, Rainbow Trout

Most recent stockings

DateSpeciesQuantitySizeDetails
May 12, 2026 Rainbow Trout 900 7.6 in avg length Giant Springs Trout Hatchery · Montana FWP Fish Stocking Records
Sep 15, 2025 Rainbow Trout 1,000 8.1 in avg length Giant Springs Trout Hatchery · Montana FWP Fish Stocking Records

Source: Montana Fish, Wildlife & Parks Last checked: Sep 5, 2026 11:01am

Fishery intelligence

Official fishery evidence

Agency survey records and measured fishery data, distilled for trip planning.

10 verified signals
Research & surveys Official survey records available

Agency survey evidence is documented for this fishery.

Use the evidence Turn records into a fishing plan
  • Compare survey evidence with the seasonal guide.
  • Use the map to connect depth, access, and structure.
  • Confirm current rules and access before your trip.
Open seasonal guidance
Angler interpretation

How the fishery changes through the seasons

This is the practical layer: use it alongside the documented species, depth, stocking, survey, access, and regulation record above. The current season opens first.

Spring

trout, kokanee
Start here
Cooler water, recent stocking, fish moving shallow, and protected shorelines or inlets that warm first.
Watch for
Cold fronts, changing water levels, muddy inflow, and early-season ramp conditions.

Summer

panfish, kokanee early
Start here
Fish early or late, then adjust toward deeper water, shade, vegetation, or comfortable temperature zones.
Watch for
Heat, weeds, algae, heat, and heavier boat traffic.

Fall

trout
Start here
Cooling water, shoreline structure, points, weed edges, and simple presentations that let you cover water.
Watch for
Wind on open water, rapidly changing weather, and shorter daylight windows.

Winter

perch, trout
Start here
Legal open-water or ice access, stable depth zones, and conservative cold-weather trip plans.
Watch for
Ice safety where relevant, ramps, road conditions, cold-water exposure, and current rules.
Know before you go

Rules and restrictions

Montana Western Fishing District lake and reservoir rules apply. Western District lakes are open all year unless a listed exception, emergency restriction, or closure applies. Check the current Montana FWP regulations before fishing.

Check the official fishing source before your trip
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What makes Glen Lake distinctive

Glen Lake has documented stocking context in the FishyNW research record, adding a managed-fishery component to its profile.

Glen Lake is documented in Lincoln County County with a dedicated FishyNW fishing and access profile.

Explore more Northwest water facts →
Research & monitoring

Water science & monitoring

Loading available public monitoring and fishery science. Use this as supporting research, not as a live fishing report.

How to read this data

Temperature, dissolved oxygen, clarity, nutrients, chlorophyll-a, pH, and conductivity are observations from public monitoring records and may be historical. Thermocline depth is shown only when FishyNW can derive a strong vertical temperature gradient from a measured profile. It is not treated as a permanent lake characteristic.

Trophic indication uses the Carlson Trophic State Index only when FishyNW can normalize a measured chlorophyll-a, Secchi, or total-phosphorus value. It is a derived ecological indicator, not an agency impairment determination.

Seasonal Fish Habitat is shown only when verified bathymetry overlaps a same-day, same-station temperature and dissolved-oxygen profile. It is a historical screening snapshot, not a live prediction of where fish are located.

For lake trout, FishyNW uses the broader USGS-tested screening combination of water at or below 15°C (59°F) and dissolved oxygen at or above 4 mg/L. For other coldwater species, FishyNW does not invent a preferred-temperature threshold; it shows only the observed thermocline-to-oxygenated-depth refuge when the evidence supports it.

Harmful-algae status is never inferred from missing data. Always check the linked state source for current advisories before contact recreation.

Sources & feedback
Community feedback

See something that needs an update?

Send the correction and, when possible, the source. FishyNW reviews submissions before changing the guide.