Rochester, Kent the Blackheath Beds of sand and gravel. As a human settlement, Rochester became established as the lowest river crossing of the River Medway, well before the arrival of the Romans. It is a focal point between two routes, being part of the main route connecting London with the Continent and the north-south routes following the course of the Medway connecting Maidstone and the Weald of Kent with the Thames and the North Sea. The Thames Marshes were an important source of salt. Rochester's roads follow north Kent's valleys and ridges of steep-sided chalk bournes. There are four ways out of
Indian River (Manistique River tributary) Indian River (Manistique River tributary) Indian River is a tributary of the Manistique River on the Upper Peninsula of Michigan in the United States. It rises out of Hovey Lake at on Hiawatha National Forest land in Alger County and flows south and east through a lake district and on through Schoolcraft County. The river flows into the 8,659 acre (35 km²) Indian Lake at and flows out at . It then flows east and south about 2.5 miles where it merges with the Manistique River, which then flows through Manistique and into Lake Michigan at . Major tributaries include