Hermosa, South Dakota, 1927.George Rinhart/Corbis via Getty Images Small mining towns flourished at the start of the 1900s. Up until the 1930s, horse-drawn carriages and automobiles could still be ...

Small mining towns flourished at the start of the 1900s, and many were abandoned by the mid-century. Up until the 1930s, horse-drawn carriages and automobiles could still be seen on the same streets.