The calculated distance (air line) between Minas de Matahambre and Diez de Octubre is approximately 107 miles respectively 172 kilometers.
By car or train, the actual journey to Diez de Octubre is certainly longer, as only the direct route (as the crow flies) between Minas de Matahambre and Diez de Octubre has been calculated here.
Air line (approximately)
172 kilometers
93 nautical miles