They have this for longboarding. nwlongboarding.com or something. All the hills are plotted on a map and categorized by what kind of riding you want to do its pretty sweet.
chelsea kills it, dont hate becasue you're jealous of her skills
Pow stashes get skied out if people know about them that's why they are kept secret. Also, someone could come catch all the fish in your fishing spot. Or make it crowded at least.