The above, grayed out area, roughly outlines the location of the Brunswick within the Rensselaer Plateau. Ten towns comprise parts of the Rensselaer Plateau.
The Town of Brunswick was incorporated in 1807. Prior to that, it was a part of Troy. A detailed map of the Town of Brunswick is available as part of a Rensselaer County map at the GIS & Mapping section of the Rensselaer County Online. The elevation at the Brunswick Town Hall at 336 Town Office Road is 495 feet. The 2010 census population of Brunswick was 11,941 -- an increase of 2.4% from the 2000 census. Brunswick is serviced by the Averill Park Central School District, Brunswick Central School District, Enlarged City School District of Troy, and Lansingburgh Central School District.
Cropseyville, which comprises most of the thin slice of the Town of Brunswick that is on the Plateau, was a hub of industry in much of the 18th century: Paul Smith'sgrist mill, Green's fulling and carding mills, and Daniel Rockenstyre's wagon shop.
As one drives east on NY Route 2 through Cropseyville, one can note stone quarries on each side of the road -- Valente's to the south and Callanan's to the west. I think it's instructive to see what a quarry looks like from the sky. Click on this link, and then click the "Bird's eye" tab to get a eyeful of Callanan Industries' aggregate pit in Cropseyville in the Town of Brunswick. Click the "+" to zoom in further.
Check out the Brunswick Then and Now historic photographs.
Brunswick Community Library
Brunswick Historical Society
History of Brunswick, New York
History of the Seventeen Towns of Rensselaer County from the Colonization of the Manor of Rensselaerwyck until the Present time
Landmarks of Rensselaer County
Map of Brunswick, NY
Sand Lake Historical Society
Town of Brunswick, NY
Town of Brunswick, NY - Wikipedia
2010 Census Data