Upper and Lower Richardson Lake Professional Review and Guide
"The shorelines of both Upper and Lower Richardson lakes are rocky, with a generally sandy bottom. The clear water in these deep lakes supports an excellent cold-water trout and salmon fishery (lake trout, brook trout, salmon). Such softwoods as spruce, fir, cedar, and white pine predominate, but much of the forest is fairly young, owing to extensive cutting prior to state acquisition. The size and orientation of the Richardson lakes make them potentially quite dangerous in bad weather.
In some places, wind-driven waves can build up over more than five miles of open water. Be ready to alter your plans in threatening weather. If you must paddle on the lake in bad conditions (returning from one of the boat-access campsites, for example), wear life vests, use extreme caution, and stay close to shore. Prominent fish species: salmon, lake trout, and brook trout."