Big Thompson Fishing Report

Big Thompson Fishing Report

Big Thompson Fishing Report

Latest Update: 12/22/2025

Current Streamflow : Gauge Off @ Big T Above Lake Estes,  22 cfs  @ Big T Below Lake Estes, 5 cfs @ Moraine Park

Christmas in Estes Park looks like it will be warmer than usual this year. Moraine Park has seen a bump in flows from recent snow melt this week, but the Big T coming out of Lake Estes is still at it's steady flow.

With sustained flow under the dam, the clarity is superb here. Small nymph rigs with BWO’s, Midges, or Sow Bugs are what we have been using lately, and the emergers are producing right now. Stay in the 20-24 range for most bugs in this system. 5x tippet has been fooling fish as of late but if its a tougher day consider 6x.

Streamers have still been producing for us, think smaller patterns such as Buggers or Landon Mayer's Mini Leech.  

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.