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New York City government began using computer mapping in the late 1970s. In 1995, the Department of Environmental Protection agreed to fund the creation of a Citywide photogrammetric base map. In January 2000 a GIS unit was established within the Department of Information Technology and Telecommunications to host and maintain this City basemap called NYCMap as well as provide other data and services to City agencies.
The mission of Citywide GIS is to develop, support and host an accurate digital map and geo-referenced data along with associated tools and applications that allow all City agencies to use the spatial data collected by many City entities. The data is utilized to support City operations, data analysis, policy making and public safety. The Unit also maintains GIS hosting environments for Internet and intranet applications.
GIS information is provided to the public through the New York CityMap, which provides a wealth of information. Input of an address provides the user with a map. In addition to indicating the specific building requested, users can select additional icons to add to the map such as schools, day care centers, senior centers, libraries, hospitals and more as well as links to Web sites for these facilities. This page is also a single access point to many of the location-based applications on NYC.gov such as online property, building, census, statistics and safety information for New York City.
 Visit the NYCityMap
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