In 1919, Lucas was home to the second most productive coal mine in Iowa, Mine No. 2 of the Central Iowa Fuel Company. This produced 217,169 tons of coal that year and employed 360 men. The last coal mine in the Lucas area was the Iowa-Nebraska Mine, closed in 1923. This mine was located about southwest of Lucas (). The former mine site is now in the Lucas Unit of the Stephens State Forest. The site is now the site of Mine Pond and the Mine Pond Campground in the state forest. This forest was a base of operations for the Civilian Conservation Corps in the 1930s. The CCC established the pine and hardwood forest that now dominates this land.