I took my mountain bike, it was very challenging at some parts, like biking up a bed of medium sized rocks, it was id say 30% very challenging rocks, i had to walk a lot of it, and 70% flat/roots, perfecr for a bike. Really flat. it's an awesome trail for hiking! not very scenic, as it runs through thick woods and that's all you can see. I did the main loop, off spring Hill st, there are three more Yellow loops to see, I'm sure there are scenic spots on those. I won't be going back on the mountain bike, but it was to get away from it all becuase I was alone on the trails, which would make it great for a hike.