Typically, Little Grandad Trail is ridden from top to bottom, as a downhill section. If you can make it up the trail that is amazing!
Start out at the intersection of Brushy Ridge Trail
and head east down Little Grandad Trail. Overall, the trail is pretty tight and has bits and pieces of rocks with a bunch of drops around a foot high. The first hazard you'll encounter is where the trail used to run but now is basically a hole. Watch your speed, and stay left at the roundabout!
After that you'll get into a muddier section, stay right. On the right, you'll find rocks to carry you over the mud and then some log piles as well. Continue down the trail enjoying some of the east coast rocks PA is known for. At the very end, there is a creek crossing so keep your head up. Once across the creek, you'll run into the bottom of the Grandad Trail