Latest Update: 12/6/2025
Current Streamflow : Guage Off @ Big T Above Lake Estes, 23 cfs @ Big T Below Lake Estes, 5 cfs @ Moraine Park
It is time to start looking at this system a little differently for this time of year. The Big T is seeing it's winter flows coming out of the dam. This will be some of our most fishable water through the dead of winter.
With sustained flows, the clarity is superb here. Small nymph rigs with BWO’s, Midges, or Sow Bugs are what we have been using lately, but be sure to keep some small dries ready should those bugs start to hatch in the warmer afternoon. This is a technical fishery in the winter, so consider sizing down on leader and tippet material - 5X and 6X respectively, but don’t let that keep you from hitting the water!
Streamers have still been producing for us, think smaller patterns such as Buggers and Leech patterns.
Let us know if you have any questions or are looking for more info on fishing the Big Thompson!
Recommended Big Thompson Flies
Big Thompson Dry Flies
These are our current favorites while out on the water—fully up to date with the latest hatches and the must-have bugs that are working right now.
Big Thompson Nymphs
These are our current favorites while out on the water—fully up to date with the latest hatches and the must-have bugs that are working right now.
Big Thompson Streamers
These are our current favorites while out on the water—fully up to date with the latest hatches and the must-have bugs that are working right now.
Now taking guide trip booking for the 2026 season! If you have any questions about guide trips please contact us at 970-498-8968 or click here to book your trip now.