Big Thompson River Report
Latest Update: 6/25/2025
Current Streamflow : 344 cfs @ Big T Above Lake Estes, 122 cfs @ Big T Below Lake Estes, 162 cfs @ Moraine Park
Spring Fishing Update: Big Thompson
The Big Thompson has been consistent for a couple of weeks now. So if you are looking for clear water this is a great option. For the nymphing game we like Two Bit Hookers, RS2's, Zebra Midges, and Rainbow Warriors. As you work closer to the dam sow bugs, small worms, and leeches can play a big role in your success in getting fish to eat, the depth of your rig and the quality of the drift are also key right now. This time of year brings hatches, and happy feeding so stay armed with some dry imitations. Hoppers and PMDs can find fish as well as some caddis patterns. As always give us a call or stop in for more info!
Recommended Big Thompson Flies
Dry Flies
- Headlight Caddis Olive #
- Parachute Adams #14-18
- Para Caddis #14-16
- CDC PMD Dun #16-18
- Chubby Chernobyl #12-16
- Stalcup's Hopper #12
Nymphs
- Zebra Midge #18-20
- Sparkle Wing RS2 #18-22
- Radiation Baetis #18-20
- Mercury FB Pheasant Tail #18-20
- Flossy Worm #16
- Sniper Baetis #18-20
- Split Back Shady BWO #20-22
- Tan Sow Bug #16-18
Streamers
- Thin Mint #8-12
- Meyer's Mini Leech #14
- Hot Head Leech #10
- Black Wooly Bugger #08
- Slumpbuster #06
We've been having a great time on the Big Thompson this year! If you have any questions about guide trips please contact us at 970-498-8968 or click here to book your trip now.