Arrowhead Lake, Montana: Fishing Spots and Seasons

• Overview

  Montana holds Arrowhead Lake, in Sanders County. This is pine and birch country. Surface area runs to about 10 acres — small enough to read in one session. Thompson Falls is the closest place, 7 miles off. Spokane is the closest city, 101 miles away. Within a short drive: Honeymoon Lake a touch under 0.7 miles, Duckhead Lake within 1 mile, Knowles Lake a touch under 1.1 miles, Frog Lake within 1.1 miles and Grass Lake a touch under 1.3 miles. It sits well inside its county, with no border complications.

• Where to Fish on Arrowhead Lake

  No figure exists for depth, so let the water show you. Weed, then depth: that is the order to fish a water of this kind. Where the bottom changes texture, fish gather; find that line. Sanders County records list rainbow trout, largemouth bass, smallmouth bass and northern pike among the fish reported. Protected fish appear in the records for this area, so treat the list as information, not an invitation. The shape of Arrowhead Lake rewards a slow walk along one bank.

• Seasonal Patterns

  Climate records put August near 56°F and December near 20°F. The freeze arrives properly here and holds. Expect a solid lid for months and a thaw around late April. The water is typically free of ice between late April and mid November. May into June fishes hardest, and September gives a second good stretch before the lid returns. Plan around that when you fish Arrowhead Lake.

• Tackle & Baits

  Nothing we hold confirms whether access is permitted. There is no mapped parking or launch close by, which usually means walking in. Largemouth respond to soft plastics tight to cover; go weedless where the growth is heavy. Local rules can differ across the county line, so check where you stand. A polite question at the farm gate opens more banks than anything else. The nearest alternative is Honeymoon Lake, 0.7 miles out. None of that is settled for Arrowhead Lake in what we hold.