The route to Bonanza Peak is a Class 4 and involves exposed scrambling. Gear and experience recommended.
Bonanza Peak is the tallest non-volcanic peak in Washington State and can be reached via the Railroad Creek Trailhead out of Holden Campground.
Alert: Major flooding is prompting evacuations, and impacting communities and public lands across Western Washington this week. Landslide risk is very high and has closed trails and roads, including major highways.
Check forecasts, consider delaying your hiking or camping plans, and stay safe out there. More info: National Weather Service, real time road closures on WSDOT, Seattle Times, KUOW
8.29.25: This trail is closed until further notice due to the Martin Fire.