Iowa Time Machine ⏰: On May 27, 1949, Iowa’s largest production coal mine, the Shuler Mine near Waukee, closed. Featuring the state’s deepest mine shaft at 387 feet, the mine employed up to 500 men and utilized a reported 32 mules to mine roughly six hundred tons of coal daily. Read more at: www.notesoniow... #iowa #historical #history #historyfacts #historia #historyshorts #iowacheck #discover #discovery #geography #waukee