
Tronsen Ridge
Central CascadesBest May–Jul, Sep–Oct
Dry-side ridge near Blewett Pass with world-class wildflower meadows, open views, and a landscape unlike anything on the wet side.
About This Trail
Tronsen Ridge sits on the dry side of the Cascades near Blewett Pass, and it behaves nothing like the wet west-side trails most Washington hikers are used to. The ridge runs through open meadows, scattered ponderosa pine, and basalt spires with views spanning from the Stuart Range to the eastern steppe. The landscape has a semi-arid, almost high desert character that sets it apart from nearly everything else in the Central Cascades.
The wildflower display here is exceptional. Trip reports from June 2025 documented 94 species in bloom on a single outing, including Tweedy's lewisia, prairie smoke, bitterroot, and multiple species of penstemon and larkspur. The flowers peak in early to mid June when the meadows light up across the entire ridgeline. Fall brings its own rewards with golden larch stands scattered along the ridge and long views through clear autumn air.
The trail follows a jeep track through an old burn zone before reaching the ridge proper, where the tread winds through patchwork meadows and pine groves. The grade is gentle and the footing is good. Two trailhead options exist: the southern approach from Ken Wilcox Horse Camp via FR 9712, and a northern access from Five Mile Road (FR 7224) that requires high clearance. Sun exposure is significant in summer, so carry plenty of water and start early on hot days.
Astronomy
Trail Conditions
“Lonnie, Mary Jean, Janice and I went exploring on Tronsen Ridge on Saturday.”
Last report: May 12, 2026
Scorecard
Permits / Passes
Safety & Considerations
Today's Hazard
- Strong sun — sunscreen, hat, and sunglasses recommended
Persistent Hazards
- Significant sun exposure with no shade for long stretches
- Limited water sources along the ridge
- Labor Mountain Fire closure may still affect access
- Northern trailhead road requires high-clearance vehicle
Getting There
Southern trailhead (recommended): Ken Wilcox Horse Camp area via FR 9716 and FR 9712. From I-90 exit 85, take SR 970 to Highway 97 over Blewett Pass, then turn onto FR 9716. Drive 3.5 miles, turn left on FR 9712, continue 5 miles past the horse camp. Northwest Forest Pass required. Northern trailhead: FR 7224 off Highway 97, 3.5 miles to an undeveloped campsite. High clearance needed.
The standard approach starts at the southern trailhead near Ken Wilcox Horse Camp. The trail begins on an old jeep track through burned forest, then transitions to proper ridge trail with signage. Head north along the ridge crest for the best meadow walking. The northern trailhead provides a shorter approach but rougher road access.
Start early in summer to beat the heat. There is no shade on the ridge and temperatures on the dry side can be significantly warmer than the west side. June mornings are ideal for wildflower photography with soft light.
Recent Reports
My annual Spring hike all off-trail up to Tronsen Ridge and Tronsen Knob from FR-7230. On Hwy 97 northbound drive over the Blewett Pass Crest and in less than a mile on the right will be the pulloff for FR-7230; go about 1 mile to the end of FR-7230 then start the hike *uphill* to Tronsen Ridge.
Lonnie, Mary Jean, Janice and I went exploring on Tronsen Ridge on Saturday. Snow was thin but we had brilliant blue skies, warming up during the day.
Starting at the Ken Wilcox horse camp and going north on Tronsen Ridge for 4. 5 or so miles, Paul and I saw 94 species of flowers in bloom (list below, thanks Paul!
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