Boulder Lake, Montana: Fishing Spots and Seasons

• Overview

  Boulder Lake lies in Missoula County, in Montana. Elevation runs to 6,503 feet. With some 109 acres of water, there is room for a boat but no need of one. The bank runs about 1.6 miles all the way round, so one visit can cover most of it. It is among the larger waters listed here for Missoula County. Nearest town is Bonner-West Riverside, 14 miles off. The nearest city of size is Spokane, 173 miles away. This one is safely inside the county line.

• Where to Fish on Boulder Lake

  Depth remains unrecorded, so treat the first session as a survey. This is a lake, so the margins and the first drop matter most. A soft bed grows weed late into autumn, which keeps fish shallow. County-wide records name rainbow trout, brook trout and cutthroat trout. Some of the species recorded here are protected or tightly regulated, so check what may be targeted before you fish. Boulder Lake fishes better once you know its edges.

• Seasonal Patterns

  Averages here run 56°F at the top of summer and 18°F at the bottom of winter. Four clear seasons, with a proper winter at one end. Hard water holds through the cold months, breaking up near early May. Averages place the thaw at early May and the freeze at mid November. Early summer and early autumn carry the open-water season. Boulder Lake runs to its own calendar within the local pattern.

• Tackle & Baits

  Whether you may fish here is not something records settle. Records list it as a natural water body rather than an impoundment. Nothing is mapped in the way of a ramp or car park within a short radius. A small crankbait along the drop and a worm in the thick stuff cover the bass. A phone call first saves an afternoon. Some ground is open by custom rather than by right, so tread carefully. Fly Lake sits 1.2 miles off and takes the overflow. Check the position at Boulder Lake before loading the car.