11. Soviet aircraft bombed Finnish vessels and harbours and dropped seaways . 12. This river also provides the basis of the commercial Saint Lawrence Seaway . 13. Shipping on the Saint Lawrence Seaway was superseded by trucking on highways. 14. Channel Seaway changed the course of the natural flow of the river. 15. Geologists call this shallow sea the Cretaceous Seaway or Western Interior Seaway. 16. Geologists call this shallow sea the Cretaceous Seaway or Western Interior Seaway . 17. The Isthmus of Panama closed the Seaway approximately 3 million years ago. 18. Several scenes were shot on Dark Island in the Saint Lawrence Seaway . 19. This fossil progression shows a record of flooding that created the seaway . 20. Barrier beaches and river deltas migrated eastward into the seaway .
