Grass Lake, Montana: Fishing Spots and Seasons

• Overview

  You will find Grass Lake in Sanders County, Montana. The setting is pine and birch on every side. At roughly 3 acres, the whole thing is within casting reach of a single walk. On size it sits at the modest end of our Sanders County list. Thompson Falls lies 7.1 miles from the water. Spokane is the closest city, 100 miles away. No boundary runs near, so the county rules hold throughout.

• Where to Fish on Grass Lake

  Without a survey to go on, judge depth from how the bank falls away. Weed, then depth: that is the order to fish a water of this kind. The productive water is a rod length or two out, not a hundred. Species logged across Sanders County include rainbow trout, largemouth bass, smallmouth bass, northern pike and sockeye salmon. Protected fish appear in the records for this area, so treat the list as information, not an invitation. On Grass Lake the obvious spot is not always the productive one.

• Seasonal Patterns

  Average temperature peaks around 56°F in August and bottoms out near 20°F in December. Spring and autumn carry the fishing; summer and winter test it. Ice fishing carries the winter, and the water opens about late April. Break-up sits around late April on average, with the water closing again about mid November. Early summer and early autumn carry the open-water season. It holds true on Grass Lake more years than not.

• Tackle & Baits

  Access is not recorded for this water. Mapping records no facilities at all near this water. For the bass here, soft plastics worked slow along cover and a spinnerbait for searching do most of the work. Sort the permit out before you load the car. A polite question at the farm gate opens more banks than anything else. Knowles Lake at 0.2 miles is the sensible second choice. The position on Grass Lake is worth confirming on the day.