Mount Saint Helens: Worm Flows and Swift Glacier Professional Guide
Detailed Trail Description from our Guidebook
"Several years after the massive 1980 eruption destroyed its 9677-foot summit dome and northern aspects, Mount Saint Helens once again became a popular recreation area. Reopened to climbing and skiing travel in 1987, the southern reaches of the mountain remained intact, offering a dramatic and unique view of Cascade geology from the summit rim.
Climbing or skiing into the crater itself, however, is strictly prohibited. The relatively benign remnants of the crevasse-free, post-eruption glaciers on the south aspect offer a wide variety of skiing terrain, and an easily approachable trailhead makes for an ideal day trip. Camping is allowed at the trailhead to accommodate an alpine start, or for a more relaxed schedule and scenic winter camping experience, consider setting up a base camp at tree line (around 5000 feet)."