One of Michigan's best-kept secrets is the giant white pine forest at the Hartwick Pines State Park, located just north of Grayling, Michigan. The forest is home to Michigan's largest section of native white pine trees. Some are over 300 years old. Most of Michigan would have looked like this forest 150 years ago before most of our state was logged off. F20 at 5 seconds, ISO 100, 18-50mm lens at 24mm