Big Lake Fishing Guide, Stillwater County, Montana

• Overview

  In Montana, Big Lake belongs to Stillwater County. Everything around it is rolling bush. It covers about 4.5 sq miles, which means weather matters as much as tactics. The outline measures near 13 miles, so local knowledge counts. By surface area it heads our Stillwater County listings. For supplies, Columbus is 20 miles out. Billings sits 27 miles out, and it is the nearest city worth the name. This one is safely inside the county line.

• Where to Fish on Big Lake

  Depth figures are not published for this one. Weed, then depth: that is the order to fish a water of this kind. On a natural lake the weed line and the shelf beyond it do the work. Reported across Stillwater County: rainbow trout, california golden trout, brown trout, brook trout and black crappie. Those are county-wide records, so not every one of them will be in this water. Work Big Lake in sections rather than trying to cover it.

• Seasonal Patterns

  Temperature averages peak at 69°F in July and bottom out at 24°F in January. The middle months are generous; the ends are demanding. The freeze runs deep into the year, with break-up near late March. Ice usually gives way near late March, and forms again about early December. The first weeks of open water and the last are the ones to plan for. It sets the rhythm of the year at Big Lake.

• Tackle & Baits

  Our records carry no access rule either way. This is a natural basin, not a dammed one. Mapped as intermittent, it fills after rain and shrinks between. Big Lake Wildlife Management Area covers this ground, which means extra rules to check. For the trout, small spinners and a box of nymphs cover both approaches. Where the road in crosses private land, ask first. A polite question at the farm gate opens more banks than anything else. For a change of water, Hunter Lake is 3.4 miles distant. Confirm before you fish Big Lake.