Thorp Mountain via Knox Creek and Kachess Ridge Trails

MODERATE 1 reviews

Thorp Mountain via Knox Creek and Kachess Ridge Trails is a 4.1 mile lightly trafficked out and back trail located near Snoqualmie Pass, Washington that features beautiful wild flowers and is rated as moderate. The trail is primarily used for hiking and is best used from June until October. Dogs are also able to use this trail.

4.1 miles
1,715 feet
Out & Back

dog friendly




wild flowers




My wife and I with two friends hiked to Thorp Mountain. The road to the trailhead was very rough. The weather was sunny and warm. Many wildflowers were blooming. The view from Thorp Mountain was very good.

2 months ago

Four of us departed our meeting place in the Eastside in my Subaru Forester at 8 am. The 1.5 mile road (FR4308-120) to the trailhead was really rough but we arrived safely at the trailhead just after 10 am. Another party in a Subaru Forester arrived shortly after us.

The first part of the trail is a meadow full of wildflowers. We reached Kachess Ridge trail in 1.3 miles with 1000 feet of elevation. Here we turned north on Kachess Ridge Trail. Two young men who passed us went south on Kachess Ridge Trail by mistake and had to turn around to get to Thorp Mountain.

Kachess Ridge Trail is in a forest and cool. At 2 miles from the trailhead we reached a junction to Thorp Mountain Trail. The Thorp Mountain Trail is steep and there were some snow patches we had to walk around.

We arrived at the lookout cabin just after 12 pm. The cabin was locked. We had lunch on the deck on the north side of the cabin where it was in the shade. A swarm of mosquitoes bothered us while we were having lunch. After we finished our lunch two young men arrived and explained what happened. We enjoyed the views from the summit and took a lot of pictures. Then we went down the way we came. We passed three more people on the way down. There were four cars at the trailhead including ours. All cars were high clearance all wheel drive vehicles.

This hike was first time for four of us and we were very satisfied with the views of mountains and wildflowers.