The devil is in the details. The Palouse trail is remote, which plays a part it making it such a great adventure. Remoteness also makes it more challenging to support.
Renslow to the Columbia River
Trail runs through the Yakima Training Center, managed by the U.S Army
Trail users are required to self-register at one of the two trailheads at Renslow (west) or Doris (east)
Beverly to the Idaho border
You must pre-register online
Registration may be requested to remain valid for up to one year
parks.wa.gov/passes-permits/permits/palouse-cascades-state-park-trail-registration
Groups of 20 or more must complete and mail in a hard copy permit with payment
Call (509) 337-6457
The Snoqualmie Tunnel at Hyak will closes for the winter at dusk on Oct. 31 and tentatively reopens in May
There are concerns of following ice in the tunnel
Bridges open and close for repairs
You need to check for updates all the up to the day of your trip
Be ready to detour if something is closed
There are many detours, mostly on the east side of the Columbia River
Some detours are optional, allowing you to avoid sandy sections or ride into town
Many detours are mandatory and permanent or semi permanent
Planners will need to review the route carefully, keep up to date on trail closures, keep on eye on the weather (to include fires) and be ready to change the routes while on the trail.
Eastern Washington is known for its heat
Plan for 80 degree temperatures and long riding days in fully exposed sun
Temperatures can rise into the 100s
High temps are a real challenge for Scouts from Western Washington
High temps have ended adventures of many in the past
100+ temps canceled Jared Morris' trip midway youtubei1Z7Xvs4EA8
If heat becomes and issue, consider
Starting route early in Seattle on Burk Gilman and ending trip before deep desert
Turn around after hitting desert and do a there and back trip
Ride early in the morning before the sun rises
Maybe divert from Ellensburg for a tubing trip on the Yakima River instead of riding another day into the desert
Use alternate route on peninsula or San Juan Islands
Headwinds can be brutal if heading from east to west
Winds are the main reason this trail is generally attempted from west to east
Winds are often welcome as they cool you down
Not so welcome at camp
Fires have shut down parts of the trail in the past
Certain sections of the trail are still damages an impassible due to previous fires
Bridges have burned down
Entire communities are no longer inhabited
These are unpredictable and is now a normal part of summer adventure planning
Nope
Burn Ban - No fires permitted at any time.
In the summer, the entire trails is a potential burn hazard
7-9mph?
Mountaineers list 7mph going up to Hyak (easy road with 2% grade)
mountaineers.org/activities/activities/bikepack-palouse-to-cascades-trail-7
The trail is almost entirely on railroad grade gravel
There is an ascent prior to Hyak, one in the Yakima training center and one towards the end of the ride east of the Columbia River
Water is a major concern for most of the Palouse Trail
Most of the trail does NOT have access to natural water sources
A water filter is almost useless
You need to fill up at every campsite or purchase water at stores along the way
Some of the trail (military base) has been treated with years to fire suppression chemicals
If you find open water there, you don't want to drink it
There are many styles of riding and many ways you can tackle the Palouse Trail
A bike with 2+ inches tires is recommended
40mm tires minimum if using a support vehicle
MANY riders have completed the entire route on a fully loaded touring bike or gravel bike with tires as small as 35
Expect to sink into sandy spots - especially in the first part of the Yakima Training center on the last leg before the Columbia River
Larger tires will help to a point
If Yakima training center is churned up by horses, consider a detour
Some of the terrain east of the Columbia River will get pretty rocky and bumpy