Rattlesnake Mountain - Grand Prospect
Snoqualmie Region
As of May 1st, 2026, Rattlesnake Mountain's Grand Prospect trail is dry and in great condition, with no snow or significant mud reported. Wildflowers are blooming, including bleeding hearts and trillium. Several downed trees are present but easily navigated. Parking can fill quickly, especially with mountain bikers. Gnats are present as temperatures rise. Earlier reports in March and April noted patchy snow and ice at higher elevations, with some sections becoming muddy. Road status and parking conditions remain consistent, though the lot fills early.
generated from 44 reports
Conditions at a Glance
Trail
Minor obstacles posing few problems
3 of 4
Snow
Trail snow-covered at times - gear and expertise recommended
2 of 4
Road
Road suitable for all vehicles
4 of 4
Bugs
No bugs
4 of 4
Sources
Flower Report: Mile 1 - lots of bleeding hearts. Mile 2 - bleeding heart + Trillium. Mile 3 & 4 - Trillium + yellow violets.Trail in great condition. I don't know why anyone says the viewpoint from St...
Trilliums are blooming!Trail is in good shape, with some muddy patches. One largish tree to go over. Parking lot fills up quickly with mountain bikers. Had some company on the trail, but plenty of sol...
Started at 11:00am, plenty of space in the lot. Trail in good conditions until the creek where it became muddy and snowy after it started gaining elevation. Nothing too bad, no traction required. Nice...
This was a great first hike of spring. I got to the trailhead about 7am and was the third car in the lot. I basically had the trail to myself the whole hike up, only passed one other person on her way...
TL:DR - The trail is almost completely snow covered up to Grand Prospect, icy down low, packed snow on trail in the middle, and soft and deep near the top, easy to post-hole there. A few small trees ...
My group of 6 people attempted to hike to Grand Prospect but had to turn around approximately 1 mile from Grand Prospect due to deep snow. The trail started out fine (snow was present but it was hard...
It wasn't looking like we'd remain very dry at the beginning but it turned out to be a really nice day. I had a memory of a much different trail 25 years ago so I was pleasantly surprised by the chang...
At 8:00 in the morning, the trail head parking lot was icy and we had light snow falling. The trail was mostly covered with snow, increasing in depth up to the benches; maybe 6 inches up there. It con...
Confirming a late January report about a lot of blowdowns east of Grand Prospect after logging activity. Some were easily avoided but some we had to crawl Under and take off packs. The ridge part of t...
9 of us met at the West Rattlesnake Mountain trailhead at 7:30 for a 7:43 start. We were greeted on the road by a stunningly beautiful sunrise, purples and pinks, and had no rain on the day.A Discover...
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