Willow Creek is a small tailwater stream located below Harrison Reservoir, that eventually flows into the Jefferson River near Three Forks, about 30 minutes from both Bozeman and Ennis. The stream begins below the reservoir in a beautiful canyon and flows almost entirely through private property until it meets the Jefferson River. Rainbows and Browns are both present in good numbers and most trout fall into the 10-15" class, although some bigger browns are present as well.
The creek occasionally blows out during high water years but Harrison Lake typically acts as a buffer for dirty water. The nymph fishing is very productive on Willow Creek throughout the season. The dry fly fishing can be very good at times but is a bit inconsistent from day to day. Caddis and Pale Morning Duns are the primary hatches.
Note: On any stream or river in Montana, landowner permission is required to legally access a stream or river when not using a public access point.