county, southwestern New York state, U.S., bordered to the south by Pennsylvania and comprising a region of moderate relief. The principal waterways ... Found on http://www.britannica.com/eb/a-z/a/48
county, western Maryland, U.S. It consists of an irregular neck of land between Pennsylvania to the north and West Virginia to the south (the North ... Found on http://www.britannica.com/eb/a-z/a/48