Mary's Mount is a historic home at Harwood, Anne Arundel County, Maryland, United States. The earliest portion of Mary's Mount was built in 1771 for Col. Richard Harwood as a 1 1/2-story gambrel roof structure. The Bird family was to take possession of this property from 1820 to 1965. Jacob Wheeler Bird enlarged the house to its present two-story height in the early 19th century. The enlargements included two northern additions, each section of which is lower than its neighbor to the south, creating a "telescope" effect. Mary's Mount was listed on the National Register of Historic Places in 1969.

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