The durable, pink-colored sandstone exposed by the river was an ideal construction material, and in 1892 quarrying began after the St. Paul and Duluth Railroad laid a spur to the outcrop.
Traces of the unimproved military road can still be seen in Wild River State Park and Banning State Park.
The buff-colored sandstone is from quarries near Banning State Park, while the red sandstone is from the Fond du Lac formation.
U.S. state | Georgia (U.S. state) | São Paulo (state) | Secretary of State | Washington (U.S. state) | state | United States Department of State | Moscow State University | United States Secretary of State | National Park Service | Ohio State University | Michigan State University | New York State Assembly | State Senator | Hyde Park | Central Park | South Park | New York State Senate | Rio de Janeiro (state) | Louisiana State Legislature | Iowa State University | Pennsylvania State University | Louisiana State University | Santa Catarina (state) | Florida State University | Paraná (state) | Yellowstone National Park | Vienna State Opera | Oregon State University | California State Assembly |