Chiwaukum Creek
Central CascadesBest May–Jun
Brushy Wenatchee Mountains trail known for rare Tweedy's lewisia blooms and heavy tick pressure.
About This Trail
Chiwaukum Creek is a short, low-elevation trail east of Stevens Pass known primarily for one thing: Tweedy's lewisia. This rare alpine flower, endemic to the Wenatchee Mountains, blooms here in early to mid-May and draws a steady trickle of wildflower enthusiasts each spring. The trail follows the creek through private property initially (stay on the designated path), then enters a narrow, brushy corridor through forest recovering from a past fire.
The approach is confusing. Signage is poor, a gated road and "no trespassing" signs on the private property make it seem like you are going the wrong way, and the trail itself is not well-marked. Recent volunteer work has cleared blowdowns at least two miles in to the riverside lunch logs. Beyond that point, the trail continues deeper into the drainage toward alpine meadows.
This is serious tick country. Multiple recent reports describe heavy deer tick infestations, especially in May when the lewisia blooms. Dogs are particularly vulnerable. Rattlesnakes have also been reported in the first mile. The trail carries a low WTA rating (2.0) not because the destination is bad, but because the access confusion, ticks, and trail conditions make for a rough experience. Come for the lewisia, bring tick repellent, and check yourself thoroughly afterward.
Seasonal Highlights
Astronomy
Trail Conditions
Blowdowns cleared to about 2 miles in (to the river lunch logs) as of May 2025. Trail is brushy beyond that. Heavy tick pressure reported in May 2025 with multiple hikers finding 7+ ticks and dogs with 30+. Rattlesnakes active in the first mile in June.
Scorecard
Low traffic year-round. A modest bump in May during lewisia season.
Safety & Considerations
Today's Hazard
- Strong sun — sunscreen, hat, and sunglasses recommended
Persistent Hazards
- Heavy tick infestations in spring, especially May
- Rattlesnakes in the first mile
- Confusing access through private property with poor signage
- Brushy, overgrown trail
Getting There
Trailhead parking is poorly signed. Access crosses private property with gated roads and no trespassing signs that do not apply to trail users.
Trailhead is east of Stevens Pass. The initial section follows a private road - stay on the designated route despite confusing signage.
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