Fishing in Lake County, Montana

What this local map set contains

The Lake County directory currently covers 12 lakes or reservoirs. 12 charts use measured bathymetry from a published source; none rely on modeled contours. Recorded maximum depths range from 25 to 380 ft, with a median of 60 ft. Those figures describe each chart's deepest recorded or modeled point, not a safe navigation depth.

Species records are attached to 12 of 12 waters. The most frequently cataloged targets are Rainbow Trout (11), Yellow Perch (8), Cutthroat Trout (7), Smallmouth Bass (7) and Crappie (6). These are coverage counts, not abundance estimates or catch forecasts; open the individual map to see the evidence and seasonal context attached to that water.

Three useful maps to compare first

1. Flathead Lake: 380 ft maximum; survey-backed contours; 12 cataloged target species.
2. Swan Lake: 120 ft maximum; survey-backed contours; 10 cataloged target species.
3. Fatty Lake: 60 ft maximum; survey-backed contours; 9 cataloged target species.

Start with a survey-backed chart when exact contour shape matters most. Use a modeled chart as broad planning context, then verify depths on the water. Comparing the three examples above also shows whether this area offers one dominant basin type or genuinely different shallow, deep, lake and river options. Access is separate from map coverage: confirm launches, shore rights, closures and posted rules before making the trip.