hey. because i might be doing some alleycats in philly, i'm wondering if anyone can recommend a good map. the one i have for boston is "american map - metro boston - pocket atlas". it's small and spiral bound with an index of streets in the back (not like that helps for boston), so i'm looking for something similar for philly.
also, is philly at all a grided city or is at as as*backwards as boston is?
thanks.