Trapper Creek Wilderness. Trapper Creek trail to Observation trail to Observation Peak Summit to Big Slide Trail to Trapper Creek to Soda Peaks Trail Bridge to National forest Cabin Rd and back to Trapper Creek. WA Trapper Creek trail to Observation trail to Observation Peak Summit to Big Slide Trail to Trapper Creek to Soda Peaks Trail Bridge to National forest Cabin Rd and back to Trapper Creek. Hiked over 15.28+ (location turned off during tail end of hike) with 3491 elevation gain. In 8hrs 52 mins total time and 7hrs moving time with an hour break on the summit and close to 50 mins in other breaks. Solo.