Muncaster Mill, less commonly known as Highway 115, is a road that starts at Woodfield Rd. in Gaithersburg and extends to Norbeck Rd. in Rockville.
The following passage can be found on the Montgomery Parks website: “The unusually picturesque frame grist mill (where grains like wheat and corn were ground into flour) with a steep gambrel roof and stone piers, was part of the adjacent “Milton” farm, home of the Robertson and Muncaster families.