Metropolitan and Micropolitan areas near Calypso Trail, Prairie County, Montana Calypso Trail Main Page HIGH QUALITY TOPO MAP, CLICK HERE More Information about Calypso Trail, Prairie County, Montana Nearest metro area is Gillette, Wyoming Click here for more outdoors activities near Gillette, Wyoming General Camping Information List of nearby metros and micros: Gillette, Wyoming, 112.7 miles away Sheridan, Wyoming, 138.5 miles away Williston, North Dakota, 156.4 miles away Spearfish, South Dakota, 165.4 miles away Dickinson, North Dakota, 177.6 miles away Rapid City, South Dakota, 220.1 miles away * Distances listed are direct linear distances, actual travel distance may be different. Go to Montana Outdoors Index