The Historical Society of Rockland County is located on five acres of landscaped grounds and consists of the History Center, Jacob Blauvelt Homestead, and Carriage House/Barn.The History Center (which is ADA-accessible) contains two museum galleries, a small museum shop, the Society's administrative offices and a library on the main level. The lower level contains collections storage and a Community Room used for meetings, lectures, and education programs. The Jacob Blauvelt Homestead is a two-story vernacular brick farmhouse built circa 1832, with later additions, that features six furnished period rooms . The Anglo-Dutch post-and-beam barn, built circa 1865, has 1,500 sqare feet of floor space used for exhibits of farm equipment, and demonstrations.