The Porcupine Mountains were able to formed, even though not even close to any tectonic plates, because of ancient, hard volcanic basalt that was uplifted. The ridges are pieces of once-towering mountains. The Porcupine Mountains were also formed by glaciers during the ice age.
Porcupine Mountains was created in 1945.
The area of Porcupine Mountains is 238.845 square kilometers.
The Huron Mountains and the Porcupine Mountains
The Porcupine Mountains are located in the western-most part of the Upper Peninsula.
The Porcupine was created in 1992.
Porcupine - comics - was created in 1963.
Crested Porcupine was created in 1758.
Porcupine Tree was created in 1987.
The Porcupine's Quill was created in 1974.
Malayan porcupine was created in 1758.
Brazilian Porcupine was created in 1758.
North American Porcupine was created in 1758.
Stump-tailed Porcupine was created in 1865.