National Parks near Great Western Trail, Clarke County, Iowa Great Western Trail Main Page HIGH QUALITY TOPO MAP, CLICK HERE More Information about Great Western Trail, Clarke County, Iowa Nearest metro area is Des Moines, Iowa Click here for more outdoors activities near Des Moines, Iowa General Camping Information List of nearby National Parks: Lewis & Clark National Historic Trail, Omaha - NE, 148.4 miles away Mississippi National River & Recreation Area, St. Paul - MN, 187.9 miles away Effigy Mounds National Monument, Harpers Ferry - IA, 203.2 miles away Homestead National Monument of America, Beatrice - NE, 213.2 miles away Pipestone National Monument, Pipestone - MN, 218.7 miles away * Distances listed are direct linear distances, actual travel distance may be different. Go to Iowa Outdoors Index