Upper Mason Lake Fishing in Madison County, Montana

• Overview

  Within Madison County, Montana, you have Upper Mason Lake. What surrounds it is lake country bush. This is a pocket water of some 4 acres, and every part of it is reachable from the bank. For a base, Whitehall sits 18 miles out. Billings is the closest city, 169 miles away. Nearby alternatives: Skytop Lake 0.9 miles away, Deep Lake a shade over 1.1 miles, Hollow Top Lake 1.4 miles away, Bismark Reservoir a shade over 2.9 miles and Louise Lake 3 miles away. There is no boundary nearby to worry about.

• Where to Fish on Upper Mason Lake

  No chart reached our records; the first cast is your sounding. This is a lake, so the margins and the first drop matter most. The shallow end warms first and pulls fish in ahead of the rest. County-wide records name rainbow trout, brown trout, mountain whitefish and brook trout. The list covers the county rather than this water alone, so treat it as a guide. Upper Mason Lake repays a walk before the first cast.

• Seasonal Patterns

  Temperature averages peak at 55°F in July and bottom out at 21°F in January. Winter shuts things down for a spell, then spring reopens them fast. The lid usually goes in mid May, which opens the strongest weeks of the year. Ice clears near mid May and comes back about mid November in a typical year. The middle of summer slows a little, with dawn and dusk carrying it. Plan around that when you fish Upper Mason Lake.

• Tackle & Baits

  The access position is unclear from public sources. Nothing formal is recorded here: no ramp, no car park, no marked path. Trout here take small spinners, spoons and, where fly water allows, a nymph or dry. Rules differ from one water to the next round here. Signs go up and come down, so check on the day. Skytop Lake at 0.9 miles is the sensible second choice. Nothing here settles the position at Upper Mason Lake for certain.