Be prepared for fading blazes at super low frequency — you may not see a blaze for 200 yards. Running this course is like a steeplechase, with many fallen trees and logs. Actually I used Mark Hatfield’s recorded course — I don’t know this person but I used his trek to get a run in before sunset (~8:00 pm according to the forecast). Looking at Mark’s elevation profile, I ran the Gunpowder Falls loop in the opposite, clockwise direction. The waypoints on my recording reflect this. Thanks Mark for posting your recorded trek.

About this run. What a workout! A lot of elevation gain and loss, and log jumping along the way. Some of the turns are hard to pick up, so I placed waypoints at just about every one of those turns. If you use my trek, the waypoints may be helpful, because having to label these turning points slowed me down more than I wanted to. There are stream crossings, and several tight corners that are more for hiking and are simply not runnable. Saw two deer which light bulbed me about ticks. In mid-spring, everything is starting to thrive, so make sure you are well covered in repellent if wearing shorts.

All in all, a rigorous outing (not too hard) with the biggest issue being fading blazes few and far in between. I will be returning. 4 Stars!