Thames Tunnel, London, England, 1827 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Plan of the roads and main objects on the eastern part of London : as connected with the tunnel excavating under the Thames from Rotherhithe to Wapping, projected by M.I. Brunel, C.E. F.R.S., 1827. It was published by H. Teape & Son in 1827. Scale [ca. 1:48,000]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the British National Grid coordinate system (British National Grid, Airy Spheroid OSGB (1936) Datum). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, docks, drainage, canals, selected buildings, and more. Includes text, advertisement, and engravings: View of the Thames River -- View of the Interior of the Thames Tunnel -- View of the iron shield compartments for workers. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

Boston and vicinity, Massachusetts -- Water works, 1852 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Map of the Boston water works, prepared under the direction of the Cochituate Water Board ; E.S. Chesbrough, city engineer ; drawn by Charles Perkins. It was published in 1852. Scale [1:38,400]. It covers the area Lake Cochituate (Natick, Framingham, Wayland) to Boston Harbor, and Everett to Dorchester, Massachusetts. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows water supply lines and features such as culverts, gatehouses, drains, waste weirs, tunnels, aqueducts, and reservoirs. Shows also features including roads, railroads, drainage, town boundaries, and more. Includes 2 profiles: Profile [of main branch] -- Profile of South Boston branch. Vertical scale [1:1,200]. This layer is part of a selection of digitally scanned and georeferenced historic maps of Massachusetts from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates (1755-1922), scales, and purposes. The digitized selection includes maps of: the state, Massachusetts counties, town surveys, coastal features, real property, parks, cemeteries, railroads, roads, public works projects, etc.