From the record
“The Lake Vermilion-Soudan Underground Mine State Park is a Minnesota state park at the site of the Soudan Underground Mine, on the south shore of Lake Vermilion, in the Vermilion Range (Minnesota). The mine is known as Minnesota's oldest, deepest, and richest iron mine.”
Wikipedia article Lake Vermilion-Soudan Underground Mine State Park, CC BY-SA 4.0.
One of 126 National Register listings published here for St. Louis County · listed in 1966 · category: Site · built in 2010 · a National Historic Landmark.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service


