Latest Update: 6/3/2026
Current Streamflow : 414 cfs @ Big T Above Lake Estes, 125 cfs @ Big T Below Lake Estes, 201 cfs @ Moraine Park
Flows have been on the rise on the Thompson. On the freestone sections, large stoneflies, caddis, mayflies and various attractor patterns have been working well.
The tailwater is on a similar program, sizing down baetis and stonelfy patterns as well as mixing in scud, worm and caddis patterns have been successful recently.
Streamers can also be effective on the Thompson with smaller minnow and crawfish 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.
Big Thompson Summer Collection View all
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.