100 miles through the North Cascades — no markings, no aid, no pacers
Other trail races within 134 miles
A self-supported 100-mile journey through the remote backcountry of the North Cascades near Lake Wenatchee, Washington. Two lollipop loops depart from Deep Creek Campground with no course markings, no aid stations, and no pacers — runners navigate by map and written directions alone across USFS trails and forest roads. The course accumulates roughly 21,000 feet of elevation gain passing through the Wenatchee, Entiat, and Chelan ranger districts, climbing as high as 6,834-foot Klone Peak. A single resupply stop is permitted at Deep Creek between loops. Often described as one of the hardest 100-milers in the world, Plain has cancelled multiple times due to Cascade wildfires, adding an element of uncertainty to this raw wilderness endurance test.
Recommended for seasoned ultrarunners
Leavenworth, WA, United StatesSeptember 19, 2026
Plain 100 Mile is a multi-loop trail race in Leavenworth, WA, United States, held on September 19, 2026. The course covers 100 miles, climbs 21,000 ft, and has a 36h cutoff.
Must complete an approved qualifier event within the qualification window
Find a qualifying raceMust have completed a TRAIL 100 mile or the Plain 100K. A run/race equivalent to the Plain 100K (very challenging event requiring significant self-support and at least 15 hours on feet) may also be considered.
| Location | Mile | Elevation | Cutoff | Crew | Drop bags |
|---|---|---|---|---|---|
Start / Finish Start | 0.0 | 2,224 ft | — | ||
Entiat River Resource | 30.0 | 3,796 ft | — | ||
Tommy Creek Resource | 33.1 | 2,139 ft | — | ||
Tommy Checkpoint | 34.5 | 4,419 ft | 9h30m2:30 PM | ||
Tyee Ridge Checkpoint | 40.4 | 6,401 ft | 17h10:00 PM | ||
Cougar Creek Resource | 48.5 | 3,537 ft | — | ||
Deep Creek Aid Station | 62.1 | 0 ft | 22h3:00 AM +1 | Crew | Drop Bags |
Chikamin Tie Checkpoint | 71.5 | 2,835 ft | 28h9:00 AM +1 | ||
Alder Ridge Checkpoint | 93.0 | 3,232 ft | — | ||
Finish Finish | 100.0 | 2,234 ft | 36h5:00 PM +1 |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
Dry camping available in the parking lot at Lake Wenatchee Recreation Club (LWRC, 14400 Chiwawa Loop Rd), the race headquarters. Nearby options include The Cove Resort at Fish Lake, Midway Village and Grocery (cabins ~0.5 miles from LWRC), The Squirrel Tree and 59er Diner in Coles Corner, and Forest Service campsites bookable at 1-888-CAMPOUT or recreation.gov.
North Cascades wildfire smoke has forced race cancellations in 2003, 2015, 2018, 2022, and 2025. AQI conditions in September can deteriorate rapidly.
September nights in the Cascades can drop near freezing, particularly above 5,000 ft. Runners must carry adequate insulation for overnight running.
Weather in the North Cascades changes rapidly. Rain, wind, and dropping temperatures are possible at any point on course.
No required gear specified
No recommended gear specified
No reviews for this event yet. Be the first to share your experience!
