From it's terminus at Forest Road 492 (Santiam – Sourdough Road) the trail begins gently climbing up a ridge. The swath of cleared trees almost resembling the right-of-way for a road, follows the trail for it's entire length. The trail continues steadily climbing as it makes it's way around several low forested hills.
After crossing a small marshy area, the trail climbs up to a saddle on the shoulder of Baking Powder Mountain. The trail begins switchbacking gently down the backside of the mountain, passing the four way junction with Lost Lake Trail #804 and Twentymile Lake Trail #806. The trail reaches the bottom of the switchbacks and crosses an unnamed creek before reaching its junction with Twentymile Creek Trail #414
The trail beyond this junction has not been maintained for many years and is in poor condition. Expect to see many down trees.
The trail drops down into the canyon of Twentymile Creek which it crosses with a ford before climbing up the other side of the canyon. The route begins sidehilling and then drops into another, smaller canyon and soon gains the top of a gentle ridge which it follows as it slowly drops into the Tenmile Creek drainage.
After a short steep pitch the trail seems to disappear in a small saddle at an old backcountry campsite which has evidently seen very little use in the past several years. Continue forward to the other side of the saddle and the trail will soon reappear. Keep following the trail down the now somewhat steeper ridge.
Downfalls are particularly bad in this section. Expect to see trees stacked 6-7 feet deep in places. On the last section of the ridge the trail pitches forward, becoming extremely steep before reaching the banks of Tenmile Creek. The trail fords the creek and emerges at an unsigned junction with Tenmile Creek Trail #415.