Mattapany-Sewall Archeological Site is an

archaeological site An archaeological site is a place (or group of physical sites) in which evidence of past activity is preserved (either prehistoric or historic or contemporary), and which has been, or may be, investigated using the discipline of archaeology an ...

in St. Mary's County, Maryland. It is located at the

Patuxent River Naval Air Station Naval Air Station Patuxent River , also known as NAS Pax River, is a United States naval air station located in St. Mary’s County, Maryland, on the Chesapeake Bay near the mouth of the Patuxent River. It is home to Headquarters, Naval Air Sys ...

on a level terrace approximately 45' above sea level, less than 1000' south of the

Patuxent River The Patuxent River is a tributary of the Chesapeake Bay in the state of Maryland. There are three main river drainages for central Maryland: the Potomac River to the west passing through Washington, D.C., the Patapsco River to the northeast ...

in an unused wooded/grassy tract. Documentary evidence identifies the site as Mattapany-Sewall, a manor established in 1663 and occupied from 1666 to 1684 by

Charles Calvert, 3rd Baron Baltimore Charles Calvert, 3rd Baron Baltimore (August 27, 1637 – February 21, 1715), inherited the colony of Maryland in 1675 upon the death of his father, Cecil Calvert, 2nd Baron Baltimore, (1605–1675). He had been his father's Deputy Governor sin ...

. It served as a governmental meeting place and colonial arsenal, and was the scene of the 1689 battle, known as the Protestant Revolution of 1689, in which Maryland's Proprietary government was overthrown. It was placed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...

in 1985.

References

External links

*, including photo in 1982, at Maryland Historical Trust * Archaeological sites on the National Register of Historic Places in Maryland Archaeological sites in St. Mary's County, Maryland Historic American Buildings Survey in Maryland Populated places in colonial Maryland National Register of Historic Places in St. Mary's County, Maryland {{StMarysCountyMD-NRHP-stub