Hartwick Pines State Park near Grayling preserves one of the rare surviving old-growth stands of white and red pine in northern Michigan, offering a glimpse of the region before the great logging era. Though most of the park was heavily cut in the 1880s and 1890s, Karen Michelson Hartwick donated the grove and surrounding land to the state in 1927 as a memorial to the logging industry. Civilian Conservation Corps restoration in the 1930s shaped much of the second-growth forest. The park also preserves logging history through its museum and visitor center, while protecting the remnant grove, trails, river access, lakes, and recreational landscape.