The calculated distance (air line) between Chemin Grenier and Montagne Blanche is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Montagne Blanche is certainly longer, as only the direct route (as the crow flies) between Chemin Grenier and Montagne Blanche has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles