Longitude: 75° 4'W to 79° 33'W
Latitude: 37° 53'N to 39° 43'N

Maryland is about 250 miles long and 90 miles wide.

The geographic center of Maryland is located in Prince Georges County, 4.5 miles NW of Davidsonville.
Longitude: 77° 22.3'W Latitude: 39° 29.5'N

If you're traveling by car on a highway from Central Maryland, it's
37 miles to Washington DC
96 miles to Philadelphia
143 miles to Richmond
196 miles to New York City
218 miles to Pittsburgh
392 miles to Boston, &
668 miles to Chicago

Maryland is bordered by the Chesapeake Bay.  The Chesapeake Bay is 195 miles long and has coast lines in both Maryland and Virginia.  Its width varies from 3 to 20 miles.  It is approximately 1,726 square miles.

Maryland is bordered by the Chesapeake Bay, by Pennsylvania on the north, and a small piece of Virginia on the south. On the east, Maryland is bordered by the Atlantic Ocean and Delaware. West Virginia and Virginia border Maryland on the west.

Maryland covers 10,467 square miles, making it the 42nd largest of the 50 states.

The highest point in Maryland is Hoye-Crest on Backbone Mountain at 3,360 feet above sea level.

The lowest point in Maryland is sea level at the Atlantic Ocean.

Winter - 35° F and Summer 74° F
Average yearly rainfall is 40.46".

Record High and Low Temperatures
HIGH: Cumberland: 109.0° F on July 10, 1936
(this temperature was also recorded on earlier dates)
LOW: Oakland: -40.0° F on January 13, 1912

Patapsco River,
Patuxent River,
Potomac River,
Susquehanna River.

Deep Creek Lake,
Loch Raven Reservoir,
Prettyboy Reservoir.