National Parks near Nilson Trail, Crook County, Wyoming Nilson Trail Main Page HIGH QUALITY TOPO MAP, CLICK HERE More Information about Nilson Trail, Crook County, Wyoming Nearest metro area is Spearfish, South Dakota Click here for more outdoors activities near Spearfish, South Dakota General Camping Information List of nearby National Parks: Devils Tower National Monument, Devils Tower - WY, 34.9 miles away Jewel Cave National Monument, Custer - SD, 67.3 miles away Mount Rushmore National Memorial, Keystone - SD, 76.3 miles away Wind Cave National Park, Hot Springs - SD, 84.8 miles away Agate Fossil Beds National Monument, Harrison - NE, 102.6 miles away * Distances listed are direct linear distances, actual travel distance may be different. Go to Wyoming Outdoors Index