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A forest trail from near Sourdough Peak to Tenmile Creek.


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Map Key

10.0

Miles

16.0

KM

Point to Point

7,072' 2,155 m

High

4,385' 1,337 m

Low

1,817' 554 m

Up

3,463' 1,056 m

Down

10%

Avg Grade (6°)

50%

Max Grade (27°)

Dogs Off-leash

Features Birding · Views · Wildflowers · Wildlife

Description

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.

Contacts

Shared By:

Wyatt Griffis

Trail Ratings

  4.0 from 1 vote

#21410

Overall
  4.0 from 1 vote
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Trail Rankings

#790

in Idaho

#21,410

Overall
2 Views Last Month
17 Since Nov 9, 2020
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Photos

Much of the Driveway Extension Trail leads through forests of Lodgepole Pine.
Nov 9, 2020 near Grangev…, ID
Fording Tenmile Creek can be hazardous.
Nov 9, 2020 near Grangev…, ID
The Driveway Extension Trail has not been maintained for many years between Twentymile Creek Trail #414 and Tenmile Creek.
Nov 9, 2020 near Grangev…, ID
The Driveway Extension Trail has not been maintained for many years between Twentymile Creek Trail #414 and Tenmile Creek.
Nov 9, 2020 near Grangev…, ID
The four way junction with Driveway Extension Trail #881, Lost Lake Trail 804, and Twentymile Lake Trail #806
Nov 9, 2020 near Grangev…, ID

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