Re: Getting into bigger fish from boulder
Fly wise, the bugs are the same, generally smaller in size though. You will want to change the waters you are targeting. Try fishing the winter lies... deeper pools, & holes. If temps warm up in the afternoon, you could probably hook up in the shallower water as the fish come out to feed. Right now you might want to target the fish sitting behind the spawners with an egg pattern.
When the mornings are cool, there are not going to be any hatches going on so you will want to dredge a midge larva or baetis off the bottom. If the temps rise, fish a midge pupae higher up in the water column,
If you're looking to get into some bigger fish within two hours of Boulder, your best bet is the Big T, or the Colorado.