Three trails. South is a short bit with a nice climb and some near intermediate spots. North nature trail has plenty of switch back climbs up and down some hills. The west loops are kinda networked. Good for sessioning around. West is mostly less demanding. All trails loaded with small rocks and some roots.
From I-630 ex 5 S on University Rt on Boyle into park.
http://www.singletracks.com/item.php?c=1&i=8123