The calculated distance (air line) between Ross-Bétio and Keur Médoune is approximately 106 miles respectively 170 kilometers.
By car or train, the actual journey to Keur Médoune is certainly longer, as only the direct route (as the crow flies) between Ross-Bétio and Keur Médoune has been calculated here.
Air line (approximately)
170 kilometers
92 nautical miles