Monroe Run Trail is a 9.6 mile out and back trail located near Grantsville, MD that features a river. The trail is rated as moderate and primarily used for hiking.
The water was low in many areas and there were A LOT of stinging nettles; nonetheless, it was a good hike. Our group did not see anyone one else during our stay. Camped overnight near the stream and had an easy walk out in the morning.
We hiked about half the trail starting from the New Germany Trailhead. It was a great hike and really easy, aside from climbing back up to get back to the trailhead. Lots of stream crossings give you a chance to cool off, and very few crowds on the trail. Good place to take your dog for a hike. Only warning is the stinging nettles that line much of the trail once you get down by the water. Luckily you can wash off in one of the the many stream crossings to relieve the itching.