The race's usual course: a clockwise loop that begins and ends at the fire station in Easton. About thirty miles are on the Pacific Crest Trail, and the route passes through the 2.5 mile Snoqualmie Pass Tunnel before climbing back over Thorp Mountain to Easton. It was the published course for 2026 and was not run, because fire closed the second half three days before the start.
The race puts the climbing at more than 23,000 feet, with the high point on Thorp Mountain at 5,840 feet and the low point at Easton at 2,140 feet. It calls the surface about 70 percent trail, 26 percent forest road and 4 percent paved road. In the race's own words, all 100s are tough and this one lands towards the tougher end of the scale, and the second half will chew you up if you do not pace appropriately.
A hundred miles through Washington's Cascade Mountains, starting and finishing at the fire station in the small town of Easton. The loop runs about thirty miles of the Pacific Crest Trail and passes through the 2.5 mile Snoqualmie Pass Tunnel, with more than 23,000 feet of climbing. It happens under a special use permit through the Okanogan-Wenatchee National Forest and Washington State Parks. Runners line up at the Easton Fire House hoping to come back to a crowd cheering “Welcome back to Easton” as they cross the finish line.
Randy Gehrke founded the race and directed it from 1999 to 2005, setting the course and the low-key atmosphere. Charlie Crissman directed from 2007 to 2012. Rich White directed from 2013 to 2021, fine-tuned the course and worked through several wildfire years. Jess Mullen has directed since 2022. In 2016 the course was changed to wrap around and over Blowout Mountain, which added about 3.2 miles and 1,000 feet of climbing to the original route. In some years fire has closed the back half of the loop and the race has run as an out and back instead.
| Mile | Station | Cutoff | Crew access | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 |
Start / Finish
2,140 ft
|
? | ● | ? | ? | ? | 4.50 |
| 4.50 | Goat Peak | ? | · | · | ? | ? | 8.00 |
| 12.50 | Cole-Blowout Saddle | 1:30pm | · | · | ? | ? | 7.20 |
| 19.70 | Little Bear | ? | · | · | ? | ? | 5.70 |
| 25.40 | Tacoma Pass | 5:00pm | · | ● | ? | ? | 6.50 |
| 31.90 | Snowshoe Butte | ? | · | · | ? | ? | 4.30 |
| 36.20 |
Stampede Pass
3,680 ft
|
8:30pm | ● | ● | ? | ? | 7.00 |
| 43.20 | Meadow Mtn | ? | · | · | ? | ? | 5.90 |
| 49.10 | Olallie Meadows | 2:00am | ? | · | ● | ? | 5.20 |
| 54.30 |
Hyak
2,550 ft
|
3:00am | ● | ● | ● | ? | 8.10 |
| 62.40 | Keechelus Ridge | ? | · | · | ? | ? | 6.80 |
| 69.20 |
Lake Kachess
2,480 ft
|
8:00am | ● | ● | ● | ? | 5.80 |
| 75.00 | Mineral Creek | ? | ● | ● | ● | ? | 3.60 |
| 78.60 | No Name Rd | ? | · | · | ? | ? | 3.00 |
| 81.60 | No Name Ridge | 12:30pm | · | · | ? | ? | 4.80 |
| 86.40 | Thorp Mtn | ? | · | · | ? | ? | 2.80 |
| 89.20 | French Cabin | ? | · | · | ? | ? | 6.80 |
| 96.00 | Silver Creek | 6:15pm | ● | · | ? | ? | 4.00 |
| 100.00 |
Finish
2,140 ft
|
7:00pm | ● | ? | ? | ? | ? |
Exit 71 off I-90. Head south off of the exit. At the stop sign, cross Railroad Street and continue onto Cabin Creek Road, curving left up and over railroad tracks to see a big red fire station. Follow parking attendant instructions.
cascadecrest100.comZero your odometer from the south side of Exit 62 overpass. 0.0 miles: leave the south side of Exit 62 interchange, heading W up Stampede Pass Rd (NF-54) for 1.1+ miles; 1.1 miles: stay straight (left fork) on NF-54 at the intersection with NF-5480 for 1.4 miles; 3.5 miles: stay straight (right) on NF-54 at the junction with NF-41 for 1.1 miles; 4.6 miles: arrive at Stampede Pass, aid station on the left (south) side of the road.
Parking. Parking is tight. One vehicle per runner. Exit 62 accesses Stampede Pass and Lake Kachess.
cascadecrest100.comZero your odometer from Exit 54 underpass. State Park area, so a Washington State Discover Pass is required and there is a fee to park. 0.0 miles: head SSW on SR-906 towards Hyak Drive E for 0.1 miles; 0.1 miles: turn left to stay on SR-906 for 0.4 miles; 0.5 miles: turn right onto NF-906 for 230 feet; 0.5 miles: turn right onto the access road for Snoqualmie Tunnel / State Park Parking for 0.1 miles; 0.6 miles: arrive at a huge parking lot, aid station in the NW corner.
Parking. A Washington State Discover Pass is required and there is a fee to park.
cascadecrest100.comZero your odometer from the end of the westbound Exit 62 off-ramp, or follow the coordinates. 0.0 miles: head NE on Kachess Lake Rd, which turns into NF-49, for 5.1 miles; 5.1 miles: turn left onto NF-4930 for 0.4 miles; 5.5 miles: turn slight right staying on NF-4930 for 0.1 miles; 5.6 miles: arrive at the aid station on the left (west) side of the road.
Parking. Park past the aid station.
cascadecrest100.comZero your odometer from the Exit 80 overpass. Crews must park at the intersection 2.5 miles above the aid station and must not drive down to it. 0.0 miles: head north on Bullfrog Rd for 2.8 miles; 2.8 miles: at the second traffic circle continue straight onto WA-903 N for 1.5 miles; 4.3 miles: turn left onto W. Nevada Ave, still WA-903 N, for 0.3 miles; 4.6 miles: turn slight right staying on WA-903 N for 4.5 miles; 9.1 miles: continue straight as WA-903 N becomes Salmon la Sac Rd for 9.2 miles; 18.3 miles: turn left onto NF-46 for 4.7 miles; 23.0 miles: continue straight on NF-46 past the turn-off for Cooper Lake, where it turns to dirt, for 2.3 miles; 25.3 miles: arrive at the intersection of NF-46 and NF-4617. This is where crews park.
Parking. Park before, that is east of, the NF-46 and NF-4617 intersection. There is a sign. Do not block the course markings: runners have missed this turn because a car hid the ribbons.
cascadecrest100.comZero your odometer from the Exit 70 overpass. Closest road access is 47.267500, -121.174250. 0.0 miles: left on West Sparks Road for 0.6 miles; 0.6 miles: right on Kachess Dam Road for 0.2 miles; 0.8 miles: continue straight onto NF-4818, no longer Kachess Dam Road, for 0.7 miles; 1.5 miles: right on an unnamed logging road heading east for 0.6 miles; 2.1 miles: arrive at the road end. The aid station is about 200 feet past the trail sign in the clearing.
Parking. Limited space for cars and aid at Silver Creek. Crews are welcome to run with their runner into the finish. If driving on to the finish, go slowly: the road is the runners' route too.
cascadecrest100.com11 people have been out there with a camera or a microphone.
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Somebody watches it before it goes anywhere near this page. What we are after is footage of this course, on the ground. If it would be just as true of any other race, it is not this.
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We read every one of these and we write back. Every fact here carries the source it came from, and the way a wrong one gets fixed is a person checking it against what you tell us.
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