Fly Fishing at South Boulder Creek (Below Gross), Colorado
Rating: 4/5
Current River Conditions
Wed Aug 26 2026 00:00:00 GMT-0600 (Mountain Daylight Time)
Gross Reservoir just drastically dropped flows, leading to more technical fishing conditions. The water is still quite cold and the fish are willing to play, but walk lightly and present softly to avoid spooking the fish. Caddis, tricos, baetis, and midges are working well right now. Watch the flows! If they jump the fishing becomes amazing.
Dry Flies:
- CDC Caddis
- Juan's Light House Spinner
- Jake's All Season Caddis
- Palomino Caddis
- Guide Winna Spinna
- Carlson's Purple Haze
- Keller's Ms. Tickle Cripple
- More-Or-Less Hopper
- Galloup's Ant Acid
- Double Stack Chubby
Nymphs:
- Anderson's Bird of Prey
- Jig Hot Butt Hare
- Krueger's Tungsten Poudre Pupa
- Hilbert's Day Saver Midge
- Boroff's Barbless Gooey Midge Pupa
- Tungsten Zebra Midge
- Poly Wing RS2
- Crystal Bender
- Tereyla's Saber Shrimp
- Prince Nymph
