Santiam, Duffy, and Mowich Lakes Trail is a 17.7 mile moderately trafficked out and back trail located near Sisters, OR that features a lake and is rated as moderate. The trail is primarily used for hiking, camping, horses, and backpacking and is accessible from April until October. Dogs and horses are also able to use this trail.
Take US-20 to mile marker 80. You will see the Pacific Trail exit on the north side of the road. Take the exit and drive up the road to the main parking lot. The trail head marker is displayed with the self-pass information sheets available to fill out. You will also need a parking pass, which can be purchased and most of the stores like REI.
This is a wonderful hike. We used the Santiam Lake trail #3491 off of the Pacific Crest Trail. The lakes on this section of the trail are gorgeous and plentiful. So many lakes we lost count. The trail around Duffy Lake is not maintained, but offered a great view of Duffy Butte and Three Fingered Jack. There is a direct trail to Duffy Lake via a forest service road if you prefer a shorter 3.5 mile hike. Mowich Lake is like a small version of Crater Lake, with a private island. This lake is at the bottom of Red Butte and behind Duffy Butte. Beauty abounds with these two lakes. Everything in between is worth the hike. It can be done in a day, but it is suggested that you take two or more days to enjoy everything in the area.