Rocky Mount State Historic Site

Rocky Mount, in Piney Flats, Tennessee, also known as the Cobb-Massengill House, was the first territorial capital of the Southwest Territory.

Rocky Mount
U.S. National Register of Historic Places
The Cobb-Massengill House
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Nearest city	Piney Flats, Tennessee
Coordinates	36°24′21″N 82°20′12″W / 36.40583°N 82.33667°W / 36.40583; -82.33667
Area	10 acres (4.0 ha)
Built	1828
Architectural style	Log house
NRHP reference No.	70000617[1]
Added to NRHP	February 26, 1970

The property of William Cobb, the original residence at Rocky Mount served as the territorial capital from 1790 to 1792.^[2] Dendroarchaeological investigations at the site by the University of Tennessee revealed that the present dwelling dates to the late 1820s.

The property is owned by the State of Tennessee and has been operated by the Rocky Mount Historical Association, a non-profit organization in partnership with the Tennessee Historical Commission, since 1962. The property is a living museum^[3] that recreates the year 1791, when American Founding Father William Blount was in residence as governor.^[4] It is next to the DeVault-Massengill House.