The calculated distance (air line) between Fazendas de Almeirim and Rio de Mouro is approximately 50 miles respectively 80 kilometers.
By car or train, the actual journey to Rio de Mouro is certainly longer, as only the direct route (as the crow flies) between Fazendas de Almeirim and Rio de Mouro has been calculated here.
Air line (approximately)
80 kilometers
43 nautical miles