The calculated distance (air line) between Sŏnbong and Razdol’noye is approximately 112 miles respectively 181 kilometers.
By car or train, the actual journey to Razdol’noye is certainly longer, as only the direct route (as the crow flies) between Sŏnbong and Razdol’noye has been calculated here.
Air line (approximately)
181 kilometers
97 nautical miles