Work sent me to Iowa and after sending a text to my friend who lives there, I looked up the National Park situation. Iowa has just two National Park units, Effigy Mounds National Monument and Herbert Hoover National Historic Site. With limited time and an already-packed schedule, I decided to aim for the closest park and on my last day in Iowa I woke up well before dawn and headed to the Herbert Hoover National Historic Site, located in West Branch, Iowa.…