Jerusalem Mills to Harford Road is a 6.1 mile lightly trafficked loop trail located near Kingsville, MD. The trail is good for all skill levels and primarily used for hiking.
Jerusalem Mills is a 5.91 mile out and back trail located near Kingsville, Maryland. The trail is good for all skill levels and primarily used for hiking.
You can actually start at either end, which is convenient. There's a parking lot at Jerusalem Mills and also one just south of where US-1 (Harford/Belair Rd) crosses the Little Gunpowder. Just like the shorter trails that start and end at the Mills, it's moderately hilly and rocky, which obviously makes it more difficult for the faster stuff (like running or biking). You can't really get lost, but it's easy to end up on the wrong loop and go a lot farther than you planned, so pay attention to the blue and white markings.