TREATS: Rattlesnake Lake through Snoqualmie Tunnel Gravel Ride


  • Advance registration required for all participants. If you decide not to ride, please click Cancel My Registration below to open space for others. (How to cancel
  • Attendance at the pre-ride safety briefing is required to participate in the ride.
  • If you have tested positive for COVID or have been exposed to someone with COVID, follow the quarantine and isolation guidelines. In general, if you have COVID or are displaying COVID symptoms, or if you are sick with the flu or a cold, you should not participate in group rides.
  • Carry a face covering in case a business or public transit requires their use.
  • Please, no spitting or “snot-rockets” while participating.
  • A CPSC certified helmet is required to be worn to participate.

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Date and Time: 
Tuesday, June 6, 2023 - 9:00am
Start Location: 
Palouse to Cascades State Park Trail - Cedar Falls Trailhead
North Bend, WA 98045
Contact Information: 
Wally Davis
42 miles
Elevation Gain: 
2,410 feet
Weather Cancellation: 
E-bike friendly
Gravel Ride

The 42 miles from Rattlesnake Lake to Hyak along the Palouse to Cascades Trail and back is arguably one of the best rides in Washington State. As we wind our way up the west side of the Cascades we look down on I90 vehicle traffic and up or around at beautiful scenery. During the ride we will cross several tall railroad bridges and, at Snoqualmie summit, go through the 2.25 mile Milwaukee Railroad Tunnel to Hyak. My first ride on this route was on a road bike with 30 mm tires. I didn't have any trouble with the gravel, but did get a flat.

Let's meet at the Palouse to Cascades State Park Trail - Cedar Falls Trailhead and please be ready to ride at 9:00. We will start with a required safety briefing, and roll out when that's done.  If you miss the briefing you will not be able to ride with the group. Because the trailhead is at a State Park, parking requires a State of Washington Discover Pass. However, just across the street (Cedar Falls Road) is the Rattlesnake Lake Recreation area which is owned and managed by Seattle Public Utilities; parking there is free and should be readily available on a Tuesday morning.

The ride is posted as a "Steady" pace which means 12 - 14 mph on flat paved roads. However, since we will be on gravel and climbing almost constantly from Rattlesnake to Hyak then descending on our way back, for this ride the designation of "Steady" implies effort, not speed. The route is over an abandoned railroad right-of-way. Since trains are pretty much limited to grades of less than 2.5%, there are no steep climbs along the route and the grade averages a nearly constant 2.1%. Our goal is to stay together, but we will regroup as needed. Restrooms are available at the start, at Hyak, and at several locations along the way. Water is not available at the start but is available halfway through the ride at Hyak where we break for a picnic lunch. 

Headlights, tail lights, and fenders are all requirements for this ride. The unlighted tunnel is totally black and you will need a headlight to see; it is, in fact, recommended that you bring a backup light (e.g. a good flashlight) in case your primary light fails. Fenders will be needed in the tunnel even if the trail is bone dry; it is wet and there are small potholes that fill with water. In addition,  you will need to bring warm clothes for the ride through the tunnel as the inside temperature is roughly 40 degrees year round; we will pause at the tunnel entrance to add layers. Bring a spare tube and tools to fix a flat, just in case.

Note: If weather conditions meet the weather cancellation criterion listed above or if there are unforeseen hazardous riding conditions or other unexpected events, the Ride Leader will post a ride-canceled note in the Comments section below at least two hours prior to the start and Ride Leader(s) will not be at the start location.

We hope you can join us!


Is this route mostly gravel? If so, any idea what my tire pressure should be? My tires are 27.5x1.95 and I usually put 55psi in them for road.

The route is all gravel. 27.5 tires are on the narrow side but may work. I rode with 30s on my first ride. I recommend you bring 2 spare tubes. I can't give knowledgeable advice on tire pressure as I have never ridden with tires that narrow. I will be riding with 38s at a pressure of about 60.

1.95" wide tires are considered narrow? They are much wider than most road bike tires. I've ridden on gravel with them before, just wasn't sure about tire pressure. I usually ride at 55psi on road, so thinking of dropping to 45 psi or so.

Sorry Anita, I got confused about the tire measurements and thought you had 27.5 mm tires. 1.95" is good. You should have no problem. See you next Tuesday.

Assuming rider weight of 150 and bicycle weight of 30 lb, tire pressure recommendation is 31 front and 33 rear.

Palouse to Cascades State Park Trail - Cedar Falls Trailhead
North Bend, WA 98045

Registrations so far...
Steady: [12-14mph]

16 rider(s)