Fly Fishing at South Boulder Creek (Below Gross), Colorado
Rating: 3/5
Current River Conditions
Mon Jun 15 2026 00:00:00 GMT-0600 (Mountain Daylight Time)
South Boulder is experiencing the opposite of what most of our streams are, too high of flows! As of right now the water is pumping out of Gross Reservoir. Although it is certainly fishable, we'd recommend hitting the creek once it gets closer to 250cfs.
Dry Flies:
- Bucky's Midge Cluster
- Galloup's Goober Midge
- Keller's Ms. Tickle Cripple
- Hi-Viz Parachute Adams
- Iwan-E-Dun Para
- High Rise Foam Caddis
- Double Stack Chubby Chernobyl
- Keller's Henneberry Hopper
- Hi-Viz Micro Chubby
- Donkey Kong Hopper
Nymphs:
- Zebra Midge
- Juan's Red Ale Midge
- Howell's Shuck-It Jig
- Jig CDC Thrasher
- Jig Fullback Napoleon
- Jig Pearl Rib Perdigon
- Hilbert's Sexi Top May
- Juan's Splitback Shady
- Crystal Bender
- Silverman's Caddis Larva
Streamers:
- Wooly Bugger
- Chicago Overcoat
- Near Nuff Sculpin
