Trail Run Project Logo

Mount Defiance Trail #1009

Difficult
 4.0 (5)

A seldom-traveled trail from Mason Lake to Thompson Lake.


Your Rating:      Clear Rating
Your Difficulty:
Your Favorites: Add to Favorites · Your List
Zoom in to see details
Map Key

4.8

Miles

7.8

KM

69%

Runnable

5,148' 1,569 m

High

3,665' 1,117 m

Low

1,472' 449 m

Up

1,797' 548 m

Down

13%

Avg Grade (7°)

55%

Max Grade (29°)

Dogs Unknown

Features Lake · Swimming · Views · Wildflowers

Description

From the Ira Spring (Mason Lake) Trail #1038 or Island-Rainbow Trail, this trail heads due northwest. Follow the ridge between the South Fork Snoqualmie River and the Pratt River Valley west for 6.8 miles. Along the way enjoy great views, heather and huckleberry meadows, and short side trips to Island Lake, Rainbow Lake and Mason Lake ending at Thompson Lake.

Mount Defiance is known for its spectacular array of wildflowers, which bloom on south-facing slopes from early to mid-July. Views of Mt. Rainier and the Snoqualmie River valley are breathtaking on a clear day. An unsigned boot trail scrambles up the west ridge to the summit of Mount Defiance, a 5584' peak. Continue ahead and down the back side of the mountain into the seldom-traveled valley of Thompson Lake.

Flora & Fauna

Numerous wildflowers, especially from early to mid-July.

Contacts

Shared By:

Emma Robson

Trail Ratings

  4.0 from 5 votes

#9743

Overall
  4.0 from 5 votes
5 Star
40%
4 Star
40%
3 Star
0%
2 Star
20%
1 Star
0%
Trail Rankings

#473

in Washington

#9,743

Overall
5 Views Last Month
686 Since May 11, 2016
Difficult

0%
0%
0%
0%
100%
0%

Photos

Meadow with wildflowers
May 18, 2016 near Riverbend, WA
Lake Thompson.
Jun 1, 2016 near Riverbend, WA

0 Comments

Weather


Current Trail Conditions

Update Conditions
Unknown See History
Add Your Check-In

Check-Ins

none