Wisconsin
"The Badger State" became the 30th state on May 29, 1848.
Although the lead and zinc deposits once attracted immigrants from around the world, mining accounts for less than ½ of 1% of the state’s business output. Crushed stone, sand and gravel used in construction are the biggest things mined. Small amounts of iron-ore, lead and zinc are also found.
The original miners of Wisconsin would just dig a hole in the side of a hill and call it "home". This is how they got the name "Badgers" and how Wisconsin got its nickname, "the badger state".