Mount Saint Helens Summit via Worm Flows Trail

Route Description for Mount Saint Helens Summit via Worm Flows Trail

Mount Saint Helens is a simply gorgeous trek and should be on the bucket list of any hiker fit enough to do it. Keep in mind, this hike is more accessible than you might think! The Worm Flows approach is a winter route. It doesn’t require mountaineering skills, but it does require a solid physical effort, preparation for the conditions, and the right gear (cleated snowshoes or skis with climbing skins are a good idea). All that being done, you can enjoy the amazing views from this active volcano.

This is a winter approach, so check out the Mount Saint Helens via Monitor Ridge route for summer climbs. You’ll want to do your best to plan for a day with minimal wind and clear weather in the forecast. The summit is almost always windy, but it can get brutal. Goggles aren’t a bad idea if you want to actually be able to enjoy your views in the gusts.

This route begins at the Marble Mountain Sno Park. Cross Swift Creek above Chocolate Falls. You’ll traverse across ridges and slopes as you leave the treeline. There are wooden route markers up until about 1,463 m. There are also occasionally cairns.

Pick your way through the lava flows and the rock to the false summit. Depending on the snow level, you’ll likely be traversing a snowfield as you approach the summit. Make your way up the crater rim, where amazing views of Mount Rainier appear.

Make your way west around the rim to the summit. Enjoy the views for as long as you can, then retrace your steps back to the trailhead.

Insider Hints for Mount Saint Helens Summit via Worm Flows Trail

• You’ll need a climber’s permit to complete this hike.
• Stay off the cornices on the crater rim!
• Avalanche safety training is highly recommended before doing this hike.