The calculated distance (air line) between Rivière-Pilote and Chateaubelair is approximately 86 miles respectively 138 kilometers.
By car or train, the actual journey to Chateaubelair is certainly longer, as only the direct route (as the crow flies) between Rivière-Pilote and Chateaubelair has been calculated here.
Air line (approximately)
138 kilometers
74 nautical miles