Very steep hill but incredibly fun to go down full speed no breaks, I hit 30 mph on it. Its really not to much pf a trail system and more of a warm up, or quick work out. The hills are all fairly steep so you do get a good burn going. I suggest this trail if you live near by.
Go to Evergreen Valley Community College and to the back parking lot. You will see a sign saying mountain lion habit, enter that area.
http://www.singletracks.com/item.php?c=1&i=6737