Big Thompson Fishing Report

Big Thompson Fishing Report

Big Thompson Fishing Report

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.

Click here for more details

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.

Click here for more details

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.

Click here for more details

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.