In ShortMill about at the bottom of the falls to feel the misty splendor of the 620-foot cascade, or hike the 1.2-mile paved trail to Benson Bridge for a close-up of one of the tallest waterfalls in the country. The cliff face is layered with five different lava flows, evidence of the Cascades' volcanic past. The rock also serves as home to several species of wild flowers in the spring.