Historical Marker
Overholt Block
Historical marker location:
1004 6th Street, Harlan, Iowa
( Marker is on 6th Street just south of Market Street, on the right when traveling north.)
Erected 1893. 1002-1004 6th Street.
Iowa is known for its agricultural production, but did you know that it was once a major producer of coal? In the late 1800s and early 1900s, Iowa had more than 200 coal mines, and coal was the state's leading industry.