The calculated distance (air line) between Sinsang-ni and Sunch’ŏn is approximately 80 miles respectively 129 kilometers.
By car or train, the actual journey to Sunch’ŏn is certainly longer, as only the direct route (as the crow flies) between Sinsang-ni and Sunch’ŏn has been calculated here.
Air line (approximately)
129 kilometers
69 nautical miles