Initial climb of about 1/2 mile to second ramp, first and third ramps dead end, third at a pretty water feature. I'd suggest not riding it as a loop as the upper trail isn't great. You'll cross 4 streams and have great views in places, otherwise you'll mostly be in the trees and shade. Raspberries and thimbleberries in July-August.
Be wary of monsoon season here, storms are violent.