Big Thompson River Report
Latest Update: 5/03/2025
Current Streamflow : 96 @ Big T Above Lake Estes, 125 cfs @ Big T Below Lake Estes, 45 cfs @ Moraine Park
Spring Fishing Update: Big Thompson
With Temperatures staying fairly consistent this past week, the Big T continues to flow consistently. Consistent flow means good fishing. The water is clear and the trout are pressured so smaller indicators may be more productive. If you tend to get out more in the mornings be prepared to nymph with small nymphs and emergers like Two Bit Hookers, RS2's, Zebra Midges, and UV Emergers in size #18-22. These are the perfect imitations of what fish will be eating. As you work closer to the dam scuds, small worms, and leeches can play a big role in your success in getting fish to eat. As the weather warms and the sun begins to come overhead keep your eyes peeled for any hatches that may start. Expect to see midges and potentially small pseudo baetis. As long as you have flies like the Stillborn Midge, Mole Midge, CDC Baetis Dun, and Sparkle Flag Blue Wing Olive in #18-22's, you should be able to manage a couple of dry fly eats if fish are nosing at the surface. Of course you can feel free to call us for a report and if you do get out please share your experience with us. We will just have to live vicariously until we can get out ourselves.
Recommended Big Thompson Flies:
Dry Flies
- Winger Parachute BWO #18
- CDC Baetis Dun #18-20
- Parachute Adams #18-20
- Sprout Midge #18-22
- Griffiths Gnat #20-22
- Sparkle Flag BWO #18-20
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.