A Lake City man died after crashing on a closed road in Guthrie County on June 10th according to a report released by the Iowa State Patrol.  The crash happened at 3:17pm on June 10th on Frontier Road.  69-year-old Robert Core of Lake City was driving a 2003 Buick LeSabre northbound on Frontier Road south of Highway 44 in Guthrie County when his vehicle struck a pile of gravel on the road, which was closed due to resurfacing. The collision caused the vehicle to enter the southbound ditch facing northwest. Core was alert and conscious after the crash and was transported by Life Flight to Methodist Hospital in Des Moines where he later died.