Rock Creek Fishing Report: May 14, 2026

Regional headline: warm weather has pushed Western Montana into full runoff. All four rivers are high, off-color, and pushy. The Bitterroot is the most fishable option this week — and only because of its side channels and protected edge water. Subsurface (worms, big stonefly nymphs, dark streamers) is outfishing dries everywhere; the dry-fly bite is best held for cloudy afternoons and clearly rising fish in soft water.

At-a-glance: ~1,800–2,000 CFS near Clinton (blown out for wade comfort) · Water temp ~47°F (cold) · Water high and off-color · Grizzly Hackle: 1/5 · Best window: 11:00 a.m. – 3:00 p.m. · Hatch focus: BWOs, March Browns, occasional caddis, possible drakes

Rock Creek is at well above wade-comfort flow. Skip aggressive crossings and the fast mid-channel lanes. Stick to side channels and softer bank water; the main stem is too big and too fast right now.

Kingfisher calls it muddy and blown out; Grizzly Hackle drops a 1/5 rating and tells anglers to focus on side channels. Fish are pushed into slow side channels and softer bank water to get out of the main push. Mornings fish better than evenings — best window is the warmest part of the day.

Best techniques:

• Heavy nymph rigs with split shot to get down fast in pocket water and deeper runs. Double bead stones, Pat's, TJ Hookers, and Zirdles on top; small dropper perdigons or a worm trailing. SJ Worms, Wire Worms, and Squirmy Worms are the worm staples.
• Streamers tight to structure — undercut banks, root wads, deeper slots. Sculpin patterns, Mini Dungeons, and a "good old bugger" all named; Sparkle Minnows and Bighorn Buggers from Grizzly Hackle's list.
• Patient dry-fly shots only when fish are visibly rising in soft tailouts and seams. Carry X-Caddis, Parachutes, Purple Haze, Last Chance Cripple, Tilt Wing BWO, Flash Cripple (Green Drake and Grey), Jake's Green Drake, Carlson's Olive Haze, and MFC Hot Spot Para-Wulff (Brindle).

Hatches & flies:

• BWOs are showing consistently; March Browns are mixing in; occasional caddis fluttering around in afternoons. Lightweight notes possible drake activity on select water.

Outlook: The big-bug window on Rock Creek is still ahead — Grizzly Hackle is calling this the "prepare for salmonfly season" stretch. Stay-tuned conditions; significant improvement won't arrive until flows drop.