The calculated distance (air line) between Pedernales and Concepción de La Vega is approximately 114 miles respectively 184 kilometers.
By car or train, the actual journey to Concepción de La Vega is certainly longer, as only the direct route (as the crow flies) between Pedernales and Concepción de La Vega has been calculated here.
Air line (approximately)
184 kilometers
99 nautical miles