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
East Rochester, Ohio Rochester, Ohio. A post office called East Rochester has been in operation since 1840. East Rochester is located along U.S. Route 30, northwest of East Liverpool and east of Canton. The nearest incorporated community is Minerva, to the west. According to the U.S. Census Bureau, the East Rochester CDP has an area of . It is in the valley of Sandy Creek, which flows west to the Tuscarawas River, a tributary of the Ohio River. East Rochester, Ohio East Rochester is an unincorporated community and census-designated place (CDP) in southern West Township, Columbiana County, Ohio, United States. As of the