Grand Prospect via Rattlesnake Mountain Trail

The round trip to Grand Prospect and back is roughly 9 to 9.8 miles, with an elevation gain of about 2,000 to 2,120 feet. While the komoot tour suggests a duration of around 2 hours and 20 minutes, most hikers find it takes closer to 4-6 hours to complete, depending on pace and stops for views.

This trail is rated as moderate to strenuous. It involves a steady uphill climb and significant elevation gain, making it a substantial workout. While not ideal for absolute beginners, it's a good choice for those looking to get into condition or who prefer a longer hike at a slightly slower pace. Some sections can be slippery, and winter conditions require extra gear.

The trail is located on the west side of Rattlesnake Mountain near North Bend, just south of I-90. Parking is available at the trailhead, and there are restrooms at the parking area. An alternative starting point from Snoqualmie Point can offer a less crowded experience and excellent views over the Snoqualmie Valley.

Yes, a Discover Pass is required for parking at the trailhead and accessing the Rattlesnake Mountain Scenic Area. You can purchase a day-use or annual pass online or at various vendors.

The trail winds through a mix of second-growth and old-growth forest. It is generally well-maintained and clearly marked, but hikers will encounter a steady uphill climb. Some sections can be slippery, especially the 'Sally's Swale' area, which is known for wet, sponge-like footing. Trail crews have installed steps and a pedestrian bridge to help navigate difficult patches.

You'll journey through lush forest with opportunities for wildlife sightings. The first notable stop is Stan's Overlook, about 1.9 to 2.4 miles in. The ultimate destination, Grand Prospect, offers extensive panoramic views of Mount Baker, Mount Si, Mount Teneriffe, Russian Butte, Mailbox Peak, and the Snoqualmie Valley.

The trail is accessible year-round, but conditions vary. Spring and fall offer pleasant temperatures and vibrant foliage. In winter, packed snow may be present, and microspikes are highly recommended for easier and safer navigation. Summer can be warm, so start early.

Yes, the trail is generally considered dog-friendly. However, always ensure your dog is on a leash and that you pack out all waste to preserve the trail's natural beauty and respect other hikers.

Hikers have opportunities for wildlife sightings, including deer, elk, and occasionally black bears. Mountain goats are also sometimes spotted. Various wildflowers, such as flowering red currant, trilliums, yellow violets, goatsbeard, and thimbleberry, can be observed throughout the seasons.

Yes, the route for Grand Prospect via Rattlesnake Mountain Trail also passes through sections of the Rattlesnake Mountain Trail, Raging Ridge, and Upward Mobility. While some initial sections might be shared with mountain bikers, dedicated trails generally keep them separate for most of the hike.

Given the trail's length and elevation gain, it's advisable to bring plenty of water, snacks, appropriate layers of clothing for changing weather, sturdy hiking boots, and navigation tools. In winter, microspikes are essential. Always carry the 10 essentials for safety.