Cle Elum-Hyak-Cle Elum

a populaire with a downhill tailwind finish
Distance: 101.5 km
Climbing: 1090 ft (Wahoo Roam v2)
Time limit: 8hr 15min
Important travel info
Construction-associated lane reductions on I-90 may slow your drive to and from the ride. Be sure to allow ample to arrive at the start in Cle Elum. Information from WSDOT here; scroll down to Homestead Valley Rd.
Bike Detours
You will encounter “Bike Detour” signs at several locations on the route. Ignore all of them. They appear to be for the questionable benefit of unfortunate cyclists riding on I-90, directing them around the construction zones and back to I-90. Ignore all BIKE DETOUR signs.
The Route
From Pioneer Coffee the route reaches the Palouse to Cascades Trail in about 1.4 miles. From there it follows the trail directly to Hyak almost entirely on gravel. This part of the P2C is more exposed than the trail on the west side of the Snoqualmie Tunnel. Be prepared for sunny conditions.
Do not be dismayed if your speed seems impaired. Gravel is slow, the route climbs almost the entire way at a railroad grade, much of it too shallow for a GPS to detect, and you may be heading into the Snoqualmie Scirocco. (Cliff Maas explains the wind.) Enjoy the often quiet setting, the absence of cars, the open fields, the forests, the river views, and your fellow riders. Carry more water than you think you should need. Keep in mind the gravel time allowance gives you an hour and a half more time than the same distance entirely on pavement. Think about the return trip: How often do our routes finish downhill with a tailwind?

There are two tunnels on the way to Hyak. Both are short enough that lights are not needed. In fact, you will exit them before your eyes can adjust. The surface in the tunnels is rougher than the trail out in the open. There are no serious potholes but be prepared to absorb surprise roller coaster bumps and dips.

At several bridges the bridge deck sits an inch or two above the dirt trail. Be careful at these transitions not to flat or dent a rim.
No services are available on the way to Hyak. There are a few pit toilets at irregular intervals.
There are numerous gates to go around. They are all well marked with reflective material. One gate in particular, at the site of a double railroad crossing at 12.8 miles, has some loose gravel in the path around the gate.
The first info control is at Hyak. Hyak has nice restrooms and a water station on the north side of the building. From Hyak you head back to Cle Elum.
On the way back the route turns off the P2C into Lake Easton State Park on a pleasant trail through forest. Take it easy as there may be families with small children. At the info control you can enjoy scenic views of the lake. A little farther there is a nice Park restroom and water just off the route, noted in the cues.
After the Park the route goes through the small town of Easton. You might want to grab a bite at Spur Burger (the only option for resupply that I could see).

Leaving Easton the route rejoins the P2C trail. Now downhill, and possibly with a sprightly tailwind, you should make good time back to Cle Elum. The old Cle Elum train depot heralds the turn off the trail and arrival in Cle Elum.
The Finish
The finish at Mule & Elk is in a construction disaster zone. Look for the large wooden beer mug on the right. Walk your bike over the steel plate, or whatever pathway leads across the construction zone that day, and make your way to the brewpub.
