11. Both were located at the head of navigation of the tidal geological fall line. 12. The city of Franklin lies on its west bank at the river's head of navigation . 13. River boats could not travel any farther inland, making the location the head of navigation . 14. From Teddington Lock to the head of navigation , the navigation authority is the Environment Agency. 15. The head of navigation on the Mississippi is the Coon Rapids Dam in Coon Rapids, Minnesota. 16. It was regarded as the head of navigation on the river before the decline in river traffic. 17. The location was about above the head of navigation on the James River at what became Richmond. 18. For many years, Yarm was at the tidal limit and head of navigation on the River Tees. 19. From the head of navigation , the miners went overland on the Jackass Trail to the gold fields. 20. The river discharges into the bay at a point between Lower Onslow, the historic head of navigation .
