2017 Map of Thunder Lake

About this map

The Hiawatha National Forest dominates this landscape on the Upper Peninsula, straddling the line between Delta and Schoolcraft Counties. This 2017 survey reveals a complex hydrological network defined by the drainage of Thunder Lake and Upper Thunder Lake, which are interconnected by various seasonal and permanent streams. The northern portion of the quadrangle is punctuated by smaller water bodies including Eagle Lake and Frankes Lake, while the southern reaches are marked by the winding courses of the Indian River and Iron Cr. The geography here illustrates the classic glaciated terrain of Michigan's wilderness, where low-lying wetlands and diverse lake systems like Cranberry Lake and Banana Lake shaped the early timber and recreation patterns of the region. Notable landmarks such as Big Spring near the Indian Lake area highlight the unique natural features protected within the national forest boundaries.