The calculated distance (air line) between Soufrière and Le Gros-Morne is approximately 58 miles respectively 94 kilometers.
By car or train, the actual journey to Le Gros-Morne is certainly longer, as only the direct route (as the crow flies) between Soufrière and Le Gros-Morne has been calculated here.
Air line (approximately)
94 kilometers
51 nautical miles