Compare 2 documented access options before you commit to a shoreline or launch.
View access →Montana lake guide
Ashley Lake Fishing
Ashley Lake is a 2,850-acre Flathead County coldwater lake supporting kokanee, rainbow trout, cutthroat trout, and yellow perch. Its 225-foot maximum depth gives fish substantial offshore habitat; public access, road conditions, and wind deserve a check before towing.
LocationFlathead County, Montana
Primary targetsKokanee, Rainbow Trout, Yellow Perch
Best seasonSpring through fall
Lake size2,850 acres
Max depth225 feet
Access2 documented options
Guide reviewed
Start here
Plan Ashley 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.
Start with the documented species list, then open a species guide for seasonal behavior and practical tactics.
Choose a fish →Use verified depth information to identify basins, breaks, points, channels, and other structure before you fish.
View depth information →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 depth89 feet
Max depth225 feet
Elevation3,961 feet
Public launches1
Summer cautionWind
Lake depth map
Depth contours may take a little time to load. Sorry for the inconvenience.
Contour line20 ft Visible depth label
Source: Montana Fish, Wildlife & Parks. Historical survey data may not reflect current water levels or underwater hazards. Informational only; not for navigation.
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Trip conditions
Current conditions
Loading the local forecast. Check access and official notices before leaving.
TodayLoading
WindLoading
GustsLoading
Rain chanceLoading
Four day outlook
Tools
Today's Lure Pick
Open Tools for species-specific lure guidance.
Official depth chart
Official static bathymetry
Interactive contours available
Ashley 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.
Trout and salmon
Kokanee
Troll small dodgers, hoochies, wedding rings, or spinners.
View species guide
Trout and salmon
Rainbow Trout
Use bait, small spinners, spoons, or slow trolling depending on access.
View species guide
Perch and pike
Yellow Perch
Use small jigs, bait, or dropper rigs near schools.
View species guide
Trout and salmon
Cutthroat Trout
See seasonal habitat, presentations, identification, and regulation cautions.
View species guide
Stocking information
Ashley 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 stocked68,902
Stocking events2
Years stocked2
Species stocked1
Species in this period: Rainbow X Cutthroat Trout
Most recent stockings
| Date | Species | Quantity | Size | Details |
|---|---|---|---|---|
| Sep 14, 2023 | Rainbow X Cutthroat Trout | 31,206 | 2.5 in avg length | Flathead Lake Salmon Hatchery · Montana FWP Fish Stocking Records |
| Sep 27, 2022 | Rainbow X Cutthroat Trout | 37,696 | 1.7 in avg length | Flathead Lake Salmon Hatchery · Montana FWP Fish Stocking Records |
Source: Montana Fish, Wildlife & Parks Last checked: Sep 5, 2026 10:45am
Fishery intelligence
Official fishery evidence
Agency survey records and measured fishery data, distilled for trip planning.
9
verified signals
Research & surveys
Official survey records available
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.
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
- Wind, 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 rules apply unless a current water-specific exception is posted. Verify current FWP regulations before fishing.
Getting on the water
Access and launches
Public access and road conditions should be checked before towing; do not assume easy shoreline access around private areas.
Sorry, there are no mapped boat ramps for this lake yet. Check the access information below for other ways to reach the water.
More launch links
Official field updates Recent surveys and fishing pressure
Official surveys and pressure information can help with trip planning. Conditions change, and these updates do not guarantee current fishing.
Kokanee, Rainbow trout, Yellow perch, Cutthroat trout
FishMT provides official Ashley Lake waterbody information with survey data sections. Use as source-available survey context for FishyNW species already listed for Ashley Lake.
Kokanee, Rainbow trout, Yellow perch, Cutthroat trout
Montana Fish, Wildlife & Parks FishMT source check includes fishery survey, sampling, or population context for Ashley Lake. This supports species planning for Kokanee, Rainbow trout, Yellow perch, Cutthroat trout, not guaranteed success.
Kokanee, Rainbow trout, Yellow perch, Cutthroat trout
FishMT Ashley Lake record includes waterbody and interactive map context. Use as access-planning context and verify ramps/restrictions before travel.
Kokanee, Rainbow trout, Yellow perch, Cutthroat trout
Ashley Lake’s FishMT waterbody record supports a coldwater/mixed seasonal planning signal, especially where Scout is comparing kokanee, trout, and perch options.
Explore by region or target
More ways to explore this fishery
Use FishyNW fishing hubs to compare this water with other relevant lakes and rivers without starting another search.
Local angler stops
Nearby bait & tackle
Independent and locally owned shops near this water. Call ahead if you need a specific bait or item.
Snappy's
Independent Montana sporting goods storeEvergreen / Kalispell, Montana · Long-running independent Montana outdoor store with a large fishing, marine and water-sports department.
Chancy & Dave's Fish Camp
Independent bait and tackle shopEvergreen / Kalispell, Montana · Compact local tackle shop stocked for northwest Montana lakes and streams with bait, locally relevant tackle, and fishing advice.
Lakestream Fly Shop
Independent fly shop and guide serviceWhitefish, Montana · Long-running independent Flathead Valley fly shop with gear, flies, reports, and guide service.
Local-business listings can change. FishyNW does not rank shops by payment or sponsorship. Verify current hours and inventory before driving.
Keep exploring
Nearby waters
The four closest FishyNW lake guides by straight-line distance.
Little Bitterroot Lake
10.8 miles away · Lake
Targets include Kokanee, Rainbow Trout, Yellow Perch.
Foy Lake 12.4 miles away · LakeTargets include Rainbow Trout, Kokanee.
McGregor Lake 15.3 miles away · LakeTargets include Rainbow Trout, Lake Trout, Yellow Perch.
Bootjack Lake 16.5 miles away · LakeTargets include Rainbow Trout, Yellow Perch, Burbot.
Did you know?
What makes Ashley Lake distinctive
Ashley Lake reaches about 225 feet at its deepest documented point.
Ashley Lake covers roughly 2,850 surface acres, making it one of the larger waters represented in FishyNW.
Ashley Lake sits at roughly 3,961 feet in elevation, so seasonal access and water temperature can differ sharply from lowland lakes.
Research & monitoring
Water science & monitoring
Loading available public monitoring and fishery science. Use this as supporting research, not as a live fishing report.
Pass 3 · depth + water column
Seasonal Fish Habitat
Surface · 0 ft
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.
Open matched Water Quality Portal recordsSources & feedback
Verified resources
Official links for this lake
Open the source that matches what you are planning.
Community feedback
See something that needs an update?
Send the correction and, when possible, the source. FishyNW reviews submissions before changing the guide.