The Three most Popular Motels for Visitors to Mount St. Helens. Located right on I-5 at Kelso, WA. This is approximately 7 minutes south of Exit 49 - Highway 504 route to Mount St. Helens. They are next to the Mall which has Red Lobster, Casa Azteca, Burger King, and other dining options along with a theater and mall shopping and a new family bowling, lazer-tag center. There are a couple older private motels right at Exit 49 but most people stay at one of these three. Guest House Inn Comfort Inn Super 8 |