Philadelphia, Pennsylvania, 1983 (Raster Image)

This layer is a georeferenced raster image of the United States Geological Survey sheet map entitled: Philadelphia County, Pennsylvania, produced by the United States Geological Survey ; Commonwealth of Pennsylvania, Department of Environmental Resources, Topographic and Geologic Survey. It was published in 1983. Scale 1:50,000. Compiled from USGS 1:24,000-scale topographic maps. Planimetry revised from aerial photographs taken in 1981 and other source data. Revised information not field checked. Map edited 1982. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Pennsylvania South State Plane Coordinate System NAD27 (in Feet) (Fipszone 3702). 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. USGS maps are typical topographic maps portraying both natural and manmade features. They show and name works of nature, such as mountains, valleys, lakes, rivers, vegetation, etc. They also identify the principal works of humans, such as roads, railroads, boundaries, transmission lines, major buildings, etc. Relief is shown with standard contour intervals of 20 feet and spot heights. Please pay close attention to map collar information on projections, spheroid, sources, dates, and keys to grid numbering and other numbers which appear inside the neatline. Includes notes, index to 1:24,000-scale maps, and location map. 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.

Juvenile Delinquents, Washington, D.C., 1935 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Spot map showing residences of juvenile delinquents in the District of Columbia as of July 1, 1935. Data furnished by Juvenile Court of the District of Columbia. It was published in 1936. Scale [ca. 1:19,200]. Base map "Complete to June 13, 1933." The image inside the map neatline is georeferenced to the surface of the earth and fit to the Maryland State Plane Coordinate System Meters NAD83 (Fipszone 1900). 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 location of juvenile delinquents' residences by race and sex. Shows also features such as block numbers and alley dwelling areas, roads, railroads and stations, drainage, selected public buildings and points of interest, parks, cemeteries, and more. 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.

New Orleans, Louisiana, 1884 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Map of the city of New Orleans showing location of exposition grounds and all approaches thereto by land & water, [by] the World's Industrial and Cotton Centennial Exposition, New Orleans, La., U.S.A., Department of Installation. It was published by The Exposition ca. 1884. Scale [ca. 1:2,000]. Covers also adjacent portions of Jefferson and St. Bernard Parishes. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Louisiana State Plane Coordinate System, South NAD83 (in Feet) (Fipszone 1702). 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 features such as exposition grounds, railroads, roads, canals, levees, drainage, block numbers, land ownership in outlying areas, selected public and industrial buildings, cemeteries, Parish boundaries, ferry routes, and more. Depths shown by soundings. Includes inset views, plans, and engravings: Perspective view of the buildings and grounds from the Northeast -- Mexican national headquarters -- Grand Rapids (Mich.) furniture pavilion -- [South pass] -- View of New Orleans in 1719 -- Railroad map of Louisiana and Texas -- Plan of New Orleans in 1770 by Capt.n Pittman of the British Army -- Ground plan -- United States and state exhibits -- Art gallery -- Main building -- Factories and Mills -- Horticultural hall. 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.