I have biked along this trail in Leesburg and Ashburn; my sister and I went long boarding on the trail heading towards Leesburg from Purcellville. The trail is generally flat with very mild slopes here and there, depending on the part of the trail you are on. It's great for biking and jogging because it is predictable and safe from roads and cars (compared to running or biking on the street or sidewalk). This makes it a desirable location for kids and pets as well. Teens use it for skateboarding and long boarding, while slightly younger kids bike and people walk their dogs. It is mostly surrounded by trees and offers shade more than half of the time. This makes it a cool and peaceful environment.