there are a lot of steep narrow climbs, but you are rewarded on the back side with some great downhill runs. it can also be very wet which will cause the trails to be closed, call the york county park system to check on that status. there are a few loops to pick from going around both lakes, you can spend quite a few hours here. there are also a few tunnels/crick through ways that can make or break your day depending how wet you get. overall fun place to run... watch out for the horse traffic.
from route 83. take the leaders heights exit, turn onto 182 west and go for about 1/4 mile and turn left on South George street. there are a number of trail heads and to choose from along the road.
http://www.singletracks.com/item.php?c=1&i=4175