The Metroparks Guide, an immensely popular map of Southeast Michigan, can be ordered over the Internet. The Guide features locations and facilities of all 13 Metroparks, plus State Parks and Recreation Areas, freeways and most major roads in Wayne, Oakland, Macomb, Washtenaw and Livingston counties.
http://www.metroparks.com/global/maps.php (link broken 2/11)
I've been partial to the Metroparks map ("Huron-Clinton Metroparks Guide") -- a freebie available thru the Metroparks' Visitor Centers. It's the best single map of Southeastern Mich that I've found. It covers a larger area than the Washtenaw county map--including Washtenaw, Wayne, Livingston, Oakland and Macomb Counties, as well as parts of the counties surrounding them.
