Miles RiverThe Miles River is a tidal river in Talbot County, Maryland. It is a tributary of the Eastern Bay and is thus part of the Chesapeake Bay watershed.EtymologyMiles River was originally called the St. Michaels River; it derives its name from Saint Michael, the patron saint of Colonial Maryland.GeographyIts watershed area is, of which is open water, so it is 22% water. The predominant land use is agricultural with, or 52% of the land area.