The 1909 fire insurance map sheets for Winooski, Vermont were produced by the Sanborn Map Co. to give fire insurance companies and underwriters accurate information about insured properties. The maps document the extensive mill complexes along the Winooski River, commercial buildings, and the... Show moreThe 1909 fire insurance map sheets for Winooski, Vermont were produced by the Sanborn Map Co. to give fire insurance companies and underwriters accurate information about insured properties. The maps document the extensive mill complexes along the Winooski River, commercial buildings, and the expanding residential areas. Show less