The Union River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data The National Map , accessed February 3, 2012 river in
Porcupine Mountains Wilderness State Park
The Porcupine Mountains, or Porkies, are a group of small mountains spanning the northwestern Upper Peninsula of Michigan in Ontonagon and Gogebic counties, near the shore of Lake Superior. The Porcupine Mountains were named by the native ...