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
Zumbro River The North and South forks join about east of Mazeppa in southwestern Wabasha County, and the Zumbro River flows eastwardly through Wabasha County, through the Richard J. Dorer Memorial Hardwood State Forest and past Zumbro Falls, Hammond, Millville and Kellogg. It flows into the Mississippi River about east of Kellogg. Some species of fish that can be found in the Zumbro River near Rochester include Green Sunfish, Rock Bass, Smallmouth Bass, Largemouth Bass, Common Carp and Creek Chub, Channel Catfish, Blue Catfish, Northern Pike. Zumbro River The Zumbro River is a tributary of the Mississippi River in the Driftless Area