Rock Creek near Missoula is in a classic late-April spring mode: cold, elevated, and fishable, but not easy. The USGS Rock Creek near Clinton gauge shows 1,170 cfs, 6.45 ft, and 5.0°C / 41°F water at 11:45 MDT on April 27. Reports from anglers are saying that there are hungry fish that are yearning to be tricked with feathers and thread!

Rock Creek has continued to fish well, though recent changes in conditions are starting to play a role. Flows have bumped up a bit and visibility has dropped slightly, so the water is a little more off-color than it has been. We’re also starting to see more angling pressure—it's getting noticeably busy out there, especially on the more accessible stretches.

Blue-winged olive, March Browns, and Grey drake activity has really picked up along with nemoura, and skwalas stoneflies. These bugs are bringing occasional fish to the surface, particularly during the warmer parts of the day. 

Nymphing remains the most dependable tactic. With slightly higher flows and reduced clarity, running a heavier indicator setup is key to getting flies down into the slower winter holding water. Patterns like Double Bead Stones, Pat’s Rubber Legs, and the TJ Hooker continue to produce, especially when paired with a smaller trailing nymph or worm.

Streamer fishing has also stayed productive. Focus on fishing heavier patterns along structure. Woolly-Headed Sculpins, Mini Dungeons, and Woolly Buggers are all solid choices. On brighter days, mixing in a slightly flashier pattern and working it along undercut banks or through pocket water can still trigger aggressive eats.