Rainbow Lake Fishing near Deer Lodge, Montana

• Overview

  Within Granite County, Montana, you have Rainbow Lake. The bank is 7,251 feet above sea level. Small at around 14 acres: two anglers spread out cover most of it. Start from Deer Lodge, 16 miles down the road. Warm Springs follows at 23 miles, then Anaconda at 23 miles. Also on the doorstep: Gold Creek Lake (0.3 miles), Bielenberg Lake lies 2.1 miles on, Tolean Lake (2.2 miles), Meadow Lakes lies 3 miles on and Altoona Lakes (3.8 miles). This one sits near enough to a boundary to be worth checking.

• Where to Fish on Rainbow Lake

  The records we hold are silent on depth, so plan to find it yourself. A natural lake fishes on cover, and cover here means weed and timber. Bays and points beat straight shoreline every time on water like this. Species logged across Granite County include rainbow trout, brook trout and brown trout. The county list is broader than any single water. On Rainbow Lake the first feature you find is usually worth a session.

• Seasonal Patterns

  August runs about 55°F on average, January about 20°F. Winter shuts things down for a spell, then spring reopens them fast. Hard water holds through the cold months, breaking up near early May. Averages suggest open water from about early May through to roughly mid November. The shoulder weeks of the open season are the productive ones. Plan any trip to Rainbow Lake around it.

• Tackle & Baits

  Public sources are silent on who controls the bank. Formal access is not mapped, so the last stretch is likely on foot. Light line and small metal for the trout; a fly rod earns its place on calm evenings. Parking is often the real limit rather than the bank itself. Some water is controlled locally without a sign saying so. Gold Creek Lake at 0.3 miles is the sensible second choice. Check the current arrangement for Rainbow Lake.