Map showing the location of Hartwick Pines State Park

Hartwick Pines State Park is a 9,672 acres (39.14 km) state park in the US state of Michigan, located in Crawford County near Grayling and Interstate 75. It is the third largest state park on Michigan's Lower Peninsula and the state's fifth-biggest park overall. The park contains an old growth forest of white pines and red pines that resembles the appearance of all of Northern Michigan prior to the logging era.

• http://en.wikipedia.org/wiki/Hartwick Pines State Park