This route starts at the Tam McArthur Trailhead on F.S. Rd. 16. (To find Road 16, go through Sisters to Elm Street and head South. The road turns into F.S. Road 16 just outside of town.) Once at the trailhead, you will climb South up on to the Rim and then turn to the West.
During your hike you will enter the Three Sisters Wilderness Area. Wilderness Permits are required for both day-use and overnight travel in the Wilderness from Memorial Day Weekend until Oct. 31. Permits are available at the trailhead.
While gaining 1200 feet in only 2.6 miles, this is a rough, somewhat rugged trail that can be hiked or ridden (horses) but not biked. It is not difficult but a lack of water on the route and the nature of any outing in Central Oregon means that one must be prepared. If you are there early or late in the season, expect some areas to still be covered in snow as the high point is at 7700 feet. If you plan to run the route without gear or water (as I did), remember to tell someone where you are and when you should be expected back.
Depending on the weather and your speed, this can be a simple hike or a full-on adventure. No technical equipment is needed though many people use trekking poles. Good boots and appropriate clothing are a must. Binoculars and a camera would be good as well due to the amazing views. Bring lots of water (there are no streams, so filters won't help) and don't forget sunscreen.
If you have information about this route that doesn't pertain to any of the other sections, please add it here.