Field trip: Conditioning Hiking Series
CHS 1 Hike - Rattlesnake Mountain (West)
CHS hike led at a CHS 1 pace (1.5-2.0 mph)to Grand Prospect from the quieter west side of Rattlesnake.
Contacts
- Sun, Jun 7, 2026
- Seattle Hiking Committee
- Day Hiking
- All Who Qualify, Adults
- Moderate
- Moderate
- Mileage: 8.0 mi
- Elevation Gain: 2,000 ft
- Pace: 1.5-2 mph
- 8 (8 capacity)
- FULL (2 capacity)
- Wed, May 20, 2026 at 9:00 AM
- Thu, Jun 4, 2026 at 5:00 PM
- Cancellation & Refund Policy
- iCal Google
This route climbs the western end of Rattlesnake Mountain, with stops at Stan's Overlook and the Grand Prospect bench. On a clear day, expect good views of Mount Si and the Snoqualmie Valley.
WTA trail info: https://www.wta.org/go-hiking/hikes/rattlesnake-mountain-grand-prospect
Carpool option: Meet at Tibbetts Valley Park & Ride (Newport Way & 17th Ave NW, the surface lot across from Issaquah Transit Center) at 7:00 a.m. Coordinates: 47.540706, -122.061933. Restrooms (port a potty style) available in the parking lot.
Trailhead: Take I-90 East to Exit 27. Turn right onto Winery Road, then right into the first parking lot in 0.3 miles. Do not continue to Snoqualmie Point — that's the next lot down the road. We'll aim to arrive around 7:30 a.m. Coordinates: 47.509376, -121.843828. Restrooms available. Discovery Pass required.
Required Equipment
Ten Essential Systems
- Navigation (map & compass)
- Sun protection (sunglasses & sunscreen)
- Insulation (extra clothing)
- Illumination (headlamp/flashlight)
- First-aid supplies
- Fire (waterproof matches/lighter/candle)
- Repair kit and tools
- Nutrition (extra food)
- Hydration (extra water)
- Emergency shelter (tent/plastic tube tent/garbage bag)