You'd want the Iron Goat Trail for this. I hiked it a few years ago. Since then, I heard the upper part of the loop trail had a mudslide and was closed off. I'm not sure if it has been cleaned up. The lower trail is an easy hike and features snow sheds.

https://www.wta.org/go-hiking/hikes/iron-goat-trail

While you're in the area, stop at nearby Deception Falls. Especially in the spring when the water is fast.