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  1. Title: New Orleans, Louisiana, Water Distribution System, 1902 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Map of the city of New Orleans : showing proposed water distribution system, [by] Sewerage and Water Board New Orleans, LA.; Geo. G. Earl, genl. sup't. It was published by the Sewerage and Water Board New Orleans in 1902. Scale [ca. 1:50,900]. 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 water distribution features such as existing and proposed water mains (with sizes), suction pipes, and water purification station sites. Also shows other features such as roads, canals, levees, drainage, cemeteries, Parish boundaries, and more. Shaded to show built-up and unbuilt areas for construction. 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.

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  2. Title: New Orleans, Louisiana and vicinity, 1931 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Map of greater New Orleans, Louisiana. It was published by the New Orleans Association of Commerce in 1931. Scale [ca. 1:32,000]. 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 roads, railroads, canals, levees, drainage, land ownership in outlying areas, cemeteries, parks, Parish boundaries, ferry routes, and more. Includes index in margins. 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.

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  3. Title: Plan of Sewerage System, Walpole, Massachusetts, 1983 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Plan of sewerage system, SEA Consultants, Inc. [for] Town of Walpole Board of Sewer and Water Commissioners. It was published by SEA Consultants, Inc. in 1983. Scale [ca. 1:23,000]. 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, index maps, legends, or other information associated with the principal map. This map shows features such as roads, railroads, watersheds, drainage, schools, cities and other human settlements, territorial boundaries, shoreline features, and more. Includes also legend of sewerage plans. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

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  4. Title: New York City Voting Poll Sites, 2013

    Contributors:

    Summary: New York City Voting Poll Sites, 2013 is a point theme representing polling locations in New York City as of 2013.

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  5. Title: New York City Voting Poll Sites, 2012

    Contributors:

    Summary: New York City Voting Poll Sites, 2012 is a point theme representing polling locations in New York City as of 2012.

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  6. Title: Inland Waterways of New Jersey 1928

    Contributors:

    Summary: Three part map of New Jersey inland waterways from Cape May to the Manasquan River. Scales shown in nautical miles and yards.

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  7. Title: New Orleans, Louisiana, 1884 (Raster Image)

    Contributors:

    Summary: 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.

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  8. Title: Boston and vicinity, Massachusetts -- Water works, 1852 (Raster Image)

    Contributors:

    Summary: 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.

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  9. Title: Des Moines-Skunk River basins showing location of basins with respect to state principal drainage lines within area

    Contributors:

    Summary: 1 map black line, hand colored ; 83 x 114 cm W.P.A. project no. 962. "Iowa state plan."

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  10. Title: Northwestern Iowa river basins showing locations of basins with respect to state principal drainage lines within basins

    Contributors:

    Summary: 1 map black line ; 83 x 114 cm Iowa state plan. "W.P.A. project 962."

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  11. Title: West central Iowa river basins showing location of basins with respect to state principal drainage lines within area

    Contributors:

    Summary: 1 map black line ; 83 x 114 cm Iowa state plan. "W.P.A. project 962."

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  12. Title: South central Iowa river basins showing locations of basins with respect to state principal drainage lines within basins

    Contributors:

    Summary: 1 map black line ; 83 x 114 cm Iowa state plan. "W.P.A. project 962."

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  13. Title: Northeastern Iowa river basins showing locations of basins with respect to state & principal drainage lines within basins

    Contributors:

    Summary: 1 map ; black line; 83 x 114 cm Iowa state plan.; "W.P.A. project 962."

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  14. Title: Northeastern Iowa river basins including the Maquoketa, Turkey, & Upper Iowa Rivers

    Contributors:

    Summary: 1 map ; black line, plastic; 56 x 48 cm WPA project no. 962.

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  15. Title: Iowa-Cedar River basins showing location of basins with respect to state principal drainage lines within basins

    Contributors:

    Summary: 1 map black line ; 83 x 114 cm W.P.A. project no. 962. "Iowa state plan."

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  16. Title: Septic Systems, New York State, 2011

    Contributors:

    Summary: This dataset presents counts of septic systems at the census tract level. Data were derived from 2011 county parcel data and aggregated by census tract. Septic systems are used by 22% of homes in New York State, and they are important components of the wastewater infrastructure. This dataset quantifies how many septic systems are used across New York State.

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  17. Title: LiDAR-Derived Bare Earth DEM for Milwaukee County and the Milwaukee Metropolitan Sewerage District (MMSD), WI 2021

    Contributors:

    Summary: This data represents a LiDAR-derived bare earth Digital Elevation Model (DEM) for the Milwaukee Metropolitan Sewerage District (MMSD), Wisconsin in 2021. This dataset contains a single file covering the geographic extent of the entire county.

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  18. Title: LiDAR-Derived Digital Surface Model (DSM) for Milwaukee County and the Milwaukee Metropolitan Sewerage District (MMSD), WI 2021

    Contributors:

    Summary: This data represents a LiDAR-derived digital surface model (DSM) for the Milwaukee Metropolitan Sewerage District (MMSD), Wisconsin in 2021. A Digital Surface Model captures both the natural and built/artificial features of the environment.

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  19. Title: LiDAR-Derived Hydro-Enforced DEM for Milwaukee County and the Milwaukee Metropolitan Sewerage District (MMSD), WI 2021

    Contributors:

    Summary: This data represents a LiDAR-derived hydro-enforced Digital Elevation Model (DEM) for the Milwaukee Metropolitan Sewerage District (MMSD), Wisconsin in 2021. This dataset contains a single file covering the geographic extent of the entire county.

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  20. Title: LiDAR-Derived Breaklines for Milwaukee County and the Milwaukee Metropolitan Sewerage District (MMSD), WI 2021

    Contributors:

    Summary: This data represents LiDAR-derived breaklines for the Milwaukee Metropolitan Sewerage District (MMSD) in 2021. Hydro breaklines maintain the definition of water-related features in an elevation model. They are used to capture linear discontinuities in the surface, lake shorelines, single-line drains for small rivers, and double-line drains for large rivers.

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