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Mount Defiance Trail #1009

Intermediate/Difficult

Trail

4.8 mile 7.8 kilometer point to point
Intermediate/Difficult

Elevation

Ascent: 1,472' 449 m
Descent: -1,797' -548 m
High: 5,148' 1,569 m
Low: 3,665' 1,117 m

Grade

Avg Grade: 13% (7°)
Max Grade: 55% (29°)

Dogs

Unknown
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Trail shared by Emma Robson

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

Emma Robson

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.

Hiked this trail?

We need help with the following missing trail information:

Family Friendly, ADA Accessible, Need to Know, Dogs Allowed

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Check-Ins

Jul 7, 2017
Ryan Burkhalter
Aug 18, 2016
Silke Cruz
Took a swim in Mason lake while on the way to the peak it was fantastic and the weather was amazing 4.8mi — 4h 30m
Jun 27, 2016
Steph Baron

Trail Ratings

  3.7 from 3 votes

#16420

Overall
  3.7 from 3 votes
5 Star
33%
4 Star
33%
3 Star
0%
2 Star
33%
1 Star
0%
Trail Rankings

#823

in Washington

#16,420

Overall
4 Views Last Month
561 Since May 11, 2016
Intermediate/Difficult

0%
0%
0%
67%
33%
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Photos

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

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