Cartographic Resources, Maps, and Spatial Data

Geographic Information Systems at University of Delaware

UD's membership in ICPSR provides access to curated data.

These Delaware DataMIL 7.5-minute topographic maps replace the USGS 7.5-minute Primary Map Series for the State of Delaware. In January 2008, copies of the maps were deposited to the University of Delaware Library Institutional Repository as the first in a series of an annual archived copies. Files are in Adobe PDF format.

The Office of State Planning Coordination (OSPC) reports to the Governor's Office and works closely with the Cabinet Committee on State Planning Issues. The Office of State Planning Coordination's mission is the continuous improvement of the coordination and effectiveness of land use decisions made by state, county, and municipal governments while building and maintaining a high quality of life in the State of Delaware.

Data is available for download from the Delaware Geological Survey in a variety of formats.

DE FirstMap serves as a self-service GIS hub for sharing data among State organizations, academia, local governments and the general public. There are available over 200 layers of information for you to download, including data layers, imagery, and documents.

Published by the State of Delaware's Department of Technology and Information (DTI).

Aggregates and makes digital maps and related GIS data available for free. Include Digital Raster Graphics of 1:24,000 scale USGS topographic maps for all 50 states; SVG boundary border files for all US states (including state, county, and town boundaries); and 2003 TIGER/Line files. GeoNames - All USGS place names are available for searching. The data can be used to find appropriate DRG's.

District of Columbia has provided public access to city operational data in as open, discoverable and usable as possible in hopes of fostering greater participation and collaboration. Search the site's datasets by topic, or explore featured datasets or review the full list of DC Data sets.

From the Maryland Department of Natural Resources, search a listing of various maps located on the site. Types of maps listed include, but are not limited to: Land and Water Trails, State Parks, State Forests, Wildlife Management Areas, Water Quality maps, and interactive mapping such as MERLIN Online. You can also obtain GIS data.

The New Jersey Geographic Information Network (NJGIN) consists of a loose federation of data stewards across the state that openly share their valuable spatial data. The focal point of the network is this website, where information consumers can search for geospatial content and data stewards can share their authoritative geospatial content.

New York State Geographic Information Systems (GIS) Clearinghouse. The NYS Geospatial Advisory Council coordinates, promotes and facilitates the development, effective use, and sharing of geographic information.

Pennsylvania Spatial Data Access (PASDA) is the official public access geospatial information clearinghouse for the Commonwealth of Pennsylvania and has served for twelve years as Pennsylvania's node on the National Spatial Data Infrastructure, Geospatial One-Stop, and the National Biological Information Infrastructure.PASDA

A repository of geospatial data produced and used by state agencies in Virginia, localities in Virginia, our federal partners, non-profits, and colleges and universities in Virginia. Hosted by the Virginia Geographic Information Network (VGIN) and the Virginia Information Technologies Agency (VITA).

West Virginia State GIS Technical Center: To provide focus, direction and leadership to users of geographic information systems (GIS), digital mapping and remote sensing within the State of West Virginia.

The Federal Geographic Data Committee (FGDC) is an interagency committee that promotes the coordinated development, use, sharing, and dissemination of geospatial data on a national basis. This nationwide data publishing effort is known as the National Spatial Data Infrastructure (NSDI).

GIS data in various formats.

With MERLIN, (Maryland 's Environmental Resources & Land Information Network) maps can be tailored to suit many needs. Includes GIS data and maps.

An online toolkit and resource center consolidating data and enabling state, federal and local users to visualize and analyze ocean resources and human use information. Includes fishing grounds, recreational areas, shipping lanes, habitat areas, and energy sites, among others.

Produced by the U.S. Department of Agriculture's Economic Research Service, provides statistics by broad categories of socioeconomic factors: people, jobs, county classifications, income, veterans

The Data.gov catalog provides access to U.S. Federal Executive Branch datasets, including spatial data.

The National Historical Geographic Information System provides a variety of spatial data.

Website provides coastal data (from economic data to satellite imagery), and contains visualization tools, predictive tools, and tools that make data easier to find and use. Content comes from many sources, all of which are vetted by NOAA.

The Digital Nautical Chart (DNC) is produced by the National Geospatial-Intelligence Agency (NGA) and is a vector-based digital product containing maritime significant features essential for safe marine navigation. DNC, for areas in which the US is the prime charting authority, is unclassified. All other areas are limited distribution.

"Data Sources" section includes many good resources.

"Query and order satellite images, aerial photographs, and cartographic products through the U.S. Geological Survey."

General Bathymetric Chart of the Oceans (GEBCO) aims to provide the most authoritative, publicly-available bathymetry data sets for the world’s oceans. The GEBCO_2020 grid is a global terrain model for ocean and land at 15 arc-second intervals.

GeoData@Tufts is developed and maintained by Tufts University Information Technology. Tufts is leading the development in collaboration with Harvard of this open source, federated web application to rapidly discover, preview, and retrieve geospatial data from multiple repositories. GeoData@Tufts combines an intuitive, map-based search interface along with traditional text-based metadata search tools for rapid data discovery and for use in teaching, learning, and research.

Site provides geospatial applications and tools. From the Earth Sciences sector of Natural Resources Canada (NRCan)

"The Geospatial Platform provides shared and trusted geospatial data, services, and applications for use by government agencies, their partners and the public "

EPA has developed many applications that allow users to explore and interact with geospatial data. This page highlights some of the flagship geospatial web applications but these represent only a fraction of the total.

National States Geographic Information Council (NSGIC) tracks data availability and the status of geographic information system (GIS) implementation in state and local governments to aid the planning and building of Spatial Data Infrastructures.

The Centers for Disease Control and Prevention (CDC) study the spatial aspects of health and illness using a variety of tools such as maps, spatial statistics, and Geographic Information Systems (GIS). Content source: National Center for Chronic Disease Prevention and Health Promotion, Division for Heart Disease and Stroke Prevention

WorldWind is an open source virtual globe API. WorldWind allows developers to quickly and easily create interactive visualizations of 3D globe, map and geographical information. Organizations around the world use WorldWind to monitor weather patterns, visualize cities and terrain, track vehicle movement, analyze geospatial data and educate humanity about the Earth.

Site provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States from 1790 to present.

This site provides applications and web map services for "Topographic Information for the Nation". This information includes topographic maps and geographic information system (GIS) data for elevation, hydrography, watersheds, geographic names, orthoimagery, governmental units/boundaries, transportation, and land cover.

A set of nationwide geographic databases of transportation facilities, transportation networks, and associated infrastructure. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the related attribute information for these features.

"Natural Earth is a public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software."

Data Explorer is your portal for discovering NOAA's National Ocean Service (NOS) spatial data collections.

Historic Places in History maps are available as kmz files for download from the Library of Congress website.

The National Geophysical Data Center provides access to a variety of shoreline/coastline data sets. from NOAA and non-NOAA sources. All datasets are in WGS84 geographic (simple latitudes and longitudes; decimal degrees) horizontal datum.

A web-based system that allows users to visualize the TIGER (Topologically Integrated Geographic Encoding and Referencing database) data. Users can select features and view their attributes, search for features by name or geocode, and identify features by selecting them from a map. TIGER data can be viewed without Geographic Information System (GIS) software and without downloading data.

The Geospatial Data Gateway (GDG) provides access to a map library of over 100 high resolution vector and raster layers in the Geospatial Data Warehouse. It is the One Stop Source for environmental and natural resources data, at any time, from anywhere, to anyone. It allows you to choose your area of interest, browse and select data, customize the format, then review and download.

Interactive maps and downloadable data for regional and global geology, geochemistry, geophysics, and mineral resources.

The GSS is an "omnibus," personal interview survey of U.S. households conducted by the National Opinion Research Center (NORC) since 1972

"Total geospatial solutions"

The Geospatial Data Gateway (GDG) provides access to a map library of over 100 high resolution vector and raster layers in the Geospatial Data Warehouse. It is the One Stop Source for environmental and natural resources data, at any time, from anywhere, to anyone. It allows you to choose your area of interest, browse and select data, customize the format, then review and download.