100M
The Canyons 100M starts at midday on Friday 23 April 2027 at the China Wall trailhead, high above the Middle Fork of the American River.
China Wall Trailhead → Downtown Auburn - Finish
- Distance
- 161 km
- Ascent
- +5,494 m
- High point
- 1,529 mChina Wall - Start
- drop bag
- 4
- Stations
- 20
- Time limit
- ≤ 35 h
- Start
- 12:00 PMFri, Apr 23
The course
The whole race, as a ridgeline
◆ drop bag▲ high point
100M
A hundred and sixty-one kilometres and 5,550 metres of climbing, run mostly on the Western States trail and almost entirely in and out of river canyons that hold the heat long after dark. The route works south through Deadwood and the crossing of El Dorado Creek, up the wall to Michigan Bluff, through Foresthill and down the long runnable miles to the river. The last hour is the one every Western States runner knows by heart: No Hands Bridge, then the climb to Robie Point and the streets of Auburn.
The time limit is 35 hours, which means most of the field runs through a full night in the canyons with a headlamp and a crew waiting somewhere above. On Livebib that wait has a screen: the course drawn as a ridgeline, the runner’s live position on it, splits at each aid station and an arrival estimate for the finish that updates as the pace changes.
The climbs
The climbs that decide the day
- 01
Deadwood - 1
3.7 km+544 m14.6 %
crest at km 16.8
- 02
km 23.7
2.5 km+494 m19.8 %
crest at km 23.7
- 03
Sugar Loaf
4 km+533 m13.4 %
crest at km 35.5
- 04
Drivers Flat
3 km+285 m9.4 %
crest at km 73.2
- 05
km 95.3
2.1 km+318 m15.3 %
crest at km 95.3
The course
On the map
Open the full-resolution mapThe roadbook
Stations
Every station on the course. Life bases carry a barrier clock in race-local time.
China Wall - Start
45.4 km to Foresthill
0 km1,529 m
- Deadwood - 115.71,197
- Swinging Bridge - Turnaround21.2831
- Deadwood - 226.51,199
- Michigan Bluffcrew35.81,059Fri 07:45 PM
Foresthill
drop bagcrew52.7 km to Cool - 1
45.4 km999 mCloses Fri 09:30 PM
- Cal 258.5515
- Drivers Flatcrew73.4515Sat 03:00 AM
- Mammoth Bar86.4190Sat 05:30 AM
- Confluence92176
- No Hands - 193.3178
Cool - 1
drop bagcrew19.6 km to Cool - 2
98 km465 mCloses Sat 08:00 AM
- Coffer Dam - 1100.6429
- Coffer Dam - 2108443
Cool - 2
drop bagcrew41.1 km to Downtown Auburn - Finish
117.6 km464 mCloses Sat 12:00 PM
- Browns Bar - 1124.3229
- ALT133.1442Sat 03:30 PM
- Browns Bar - 2143.3237
- No Hands - 2153.1178
Downtown Auburn - Finish
drop bag
158.7 km387 mCloses Sat 11:00 PM
Course data verified September 6, 2026