From the benchWith flows at 1,490 CFS and water clarity excellent, focus your morning on the shallow riffles between the dam and 3-Mile access — wade the edges and nymph the seams where the riffle transitions to a flat. As the PMD hatch builds toward mid-morning, switch to a dry and target individual rising fish in the tailouts rather than blind-casting. By early afternoon, when temps push toward 94°F and the hatch dies, move to the shaded cutbanks with a hopper or ant and work the last 6 inches of bank — the Bighorn's browns stack up there during the heat of the day. Keep an eye on the western sky after 2 PM; if those afternoon thunderstorms materialize, get off the water early and plan to hit the evening caddis activity once the storm passes.