CHS 2 Hike

Field trip: Conditioning Hiking Series

CHS 2 Hike - Grand Prospect

CHS hike led at a CHS 2 pace (2.0-2.5 mph)

COVID-19: Learn about our most up-to-date guidance for participants and leaders on our COVID-19 Response page. All participants and leaders must agree to the COVID-19 Code of Conduct before participating in this Mountaineers activity.
  • Moderate, Strenuous
  • Moderate
  • Mileage: 8.4 mi
  • Elevation Gain: 2,120 ft
  • Pace: 2.0-3.0 mph

We will meet at the parking lot of Rattlesnake Mountain/Snoqualmie Point Park at 7:45 am. Plan to start the hike by 8 am.

Restrooms at the parking lot. Discovery Pass required! 

Following introductions, a description of the route, and current trail conditions, we will plan to start hiking a few minutes before 8am. There are restrooms in the parking lot.

Trailhead Directions:  

From the west, take I-90 to Exit 27. At the end of the off-ramp, turn right onto Winery Road. In about 0.35 miles turn right into the parking area for Rattlesnake Mountain. (Straight ahead would lead you into Snoqualmie Point Park.)

If you are arriving via I-90 from the east there is no Exit 27 off-ramp (as of 2021.) You will have to continue on west an additional 2 miles to Exit 25 (Hwy 18.) Exit right, turn left onto Hwy 18, pass under both lanes of I-90, then turn left again onto the on-ramp for I-90 eastbound. In about two miles, reach Exit 27 and proceed as above.

Google Maps link Rattlesnake Mountain Trail Parking Lot

This trail climbs the western end of Rattlesnake Mountain and will give us some great views of Mount Si and the Snoqualmie Valley.  We will plan on taking a short break at Stan's Overlook on the way up and a longer break when we arrive at Grand Prospect. Please be prepared for the elevation gain as this hike is steadily uphill and may seem strenuous.  We will be aiming for a pace of 2.0 mph but will ultimately stay together as a group.

Additional information about our destination can be found on the WTA website through the following link:  Rattlesnake Mountain - Grand Prospect.   


Rattlesnake Mountain (West)

Required Equipment

Required Equipment

Ten Essential Systems

  1. Navigation (map & compass)
  2. Sun protection (sunglasses & sunscreen)
  3. Insulation (extra clothing)
  4. Illumination (headlamp/flashlight)
  5. First-aid supplies
  6. Fire (waterproof matches/lighter/candle)
  7. Repair kit and tools
  8. Nutrition (extra food)
  9. Hydration (extra water)
  10. Emergency shelter (tent/plastic tube tent/garbage bag)
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