Fishing Rock Slide Lake in Boise County, Idaho

• Overview

  You will find Rock Slide Lake in Boise County, Idaho. The surface lies 8,658 feet up. Small at around 8 acres: two anglers spread out cover most of it. By elevation it is in the upper part of our Idaho listings. 39 miles away sits Sun Valley, the nearest town. For a city, Boise is 62 miles off. It sits well inside its county, with no border complications.

• Where to Fish on Rock Slide Lake

  Without a survey to go on, judge depth from how the bank falls away. Still water like this holds fish on the edges rather than out in the open. Weed, then depth: that is the order to fish a water of this kind. Records held for Boise County cover cutthroat trout, rainbow trout, california golden trout, Arctic grayling and mountain whitefish. At least one recorded species is protected in parts of its range; read the local rules before targeting anything. The shape of Rock Slide Lake decides where the fish sit.

• Seasonal Patterns

  The seasonal spread runs 16°F to 52°F. Winter shuts the surface down for months. Winter locks it down, and late May brings it back. From about late May to around early November, expect open water on the long-run figures. The strongest runs come at either end of the open season. The season on Rock Slide Lake follows the weather closely.

• Tackle & Baits

  There is no clear statement anywhere on who can fish it. Mapping shows no built access close by; expect to walk in from wherever you can leave the car. Light line and small metal for the trout; a fly rod earns its place on calm evenings. Look for a notice board at the entrance. Where the way in crosses private ground, ask first. The nearest alternative is Low Pass Lake, 0.5 miles out. Treat access at Rock Slide Lake as something to verify.