Sourdough Mountain Trail

HARD 15 reviews

Sourdough Mountain Trail is a 8.2 mile lightly trafficked out and back trail located near Marblemount, Washington that offers scenic views and is rated as difficult. The trail is primarily used for hiking and is best used from May until October.

DISTANCE
8.2 miles
ELEVATION GAIN
5134 feet
ROUTE TYPE
Out & Back

hiking

views

Directions from Ross Dam Parking Area: Travel west on Highway 20 to mile marker 126. Turn right and cross the Diablo Dam. Drive into the community of Diablo and park near the enclosed swimming pool. The trail begins behind the pool.

hiking
4 days ago

Amazing views there is a side of a mountain with 5 large waterfalls as you hike up. Also, I made it to Sourdough campground but there was a lot of snow still so I couldn't find the trail. In a couple of weeks you should be able to get to the top no problem.

hiking
10 days ago

Today it was done! Realy hard elevation in the first part of trail. About 1000 m for 2,5 hour with the water pauses. We made just a half of trail and come back. No snow. Some good views on the top.

hiking
21 days ago

hiking
1 month ago

This trail was no joke! The entire trail is uphill with absolutely no flat areas. Very difficult but worth every bit of pain. The view from the top is great, and the feeling of accomplishment that I got when I finished was one of the best feelings I've gotten from hiking. Take extra water! ;D

backpacking
1 month ago

Only went 2.5 miles up (~1 hour in) since snow made the trail impossible to find after that point, but it was still a good (and tough) hike with my backpacking gear. A few notes here:
- At no point was the trail level...definitely not a walk in the park
- There were no real trail markers (other than at the beginning), a topographic map would have been helpful to find the trail
- Come back in August when the snow melts and you should have no problem day hiking this
- From the start of the parking lot to the lookout house is 5.2 miles according to the trailhead, so a total of 10.4 miles rather than 8.2

hiking
4 months ago

Did not make it to the top, got to about 4500ft, but still got some amazing views from there. Got mountain, lake, and wildlife. The trail is switchback for the first part and then just a straight, steady incline from there. All steep.

hiking
8 months ago

hiking
9 months ago

hiking
9 months ago

Great hike!!! Definitely go do this! Amazing views all around. Garmin watch tracked us 5.2 miles up and 5.2 miles back. Took a total of 6 hours with brief water and snack stops. Lookout tower at the top.

camping
11 months ago

My group Hiked the trail to the campsite, set up camp, then hiked to the look out. We stayed the night and then hiked down. The trail was Steep but well maintained. It has been Recently cleared of fallen trees and debris. We recommend trekking poles for the trip, especially for the way back down. The snow at the camp pads is cleared away, but there is still snow along the ridgeline on the way to the lookout. Campsite is along the left side of the main stream.
Camp Grid N48 44.690 W121 07.757
Four stars due difficulty vs reward gained.

Wednesday, May 18, 2016

We didn't make it to the top on account of rain, but we enjoyed the parts we did. Really steep, switchbacks. Great work out with beautiful mountain and lake views through the trees.

camping
Monday, June 15, 2015

The trail is steep for the first two miles, and the switchbacks are seemingly endless during that time. Trail conditions are decent and the 5-6 downed trees are easily passible. The trail was free from snow below 5000ft, and the remaining snow at the top was easily navigated. The campsite was in good condition and the views were great from the top.

hiking
Sunday, May 17, 2015

This is a strenuous hike. The trail is easy to follow however, as of May 2015 there is quite of bit of snow still on the mountain. This Trail is nothing but inclined switchbacks gaining in elevation. Gorgeous views as you make it up the mountain to the camp area where it opens up. B/c of the snow much of the trail was lost and we had to make our way on our own. Probably best to do this during the summer when you can follow the trail more easily! Coming down the mountain was a breeze.

hiking
Sunday, September 23, 2012

The trail is steep the entire way and narrow in places. Switchbacks through trees for at least the first half of the trail which eventually opens up to meadow views of Diablo Lake to the south. Keep climbing to the top of the ridge for 360 views of mountain peaks as well as Ross Lake to the north. Not an easy hike, but the views are worth it.

hiking
Tuesday, September 21, 2010

Great views of glaciers peaks and Diablo Lake below. Not the best maintained trail, and not well marked. Difficult to find look out point. Steep incline the majority of the way.