USGS is a primary source of geographic information system (GIS) data. Our data and information is presented in spatial and geographic formats, including The National Map, Earth Explorer, GloVIS, …

Turbo-charge your search for free GIS data with this list of 10 free, downloadable global GIS datasets from highly reputable sources - vector and raster.

Jan 14, 2024 · In the realm of Geographic Information Systems (GIS), the foundation of spatial data management lies within GIS databases. These databases serve as the backbone for storing, …

U.S. federal agencies have excelled at creating and managing critical geospatial data to meet their own needs. For years, the public and private sectors have accessed these free and open datasets …

This GIS page contains a collection of dynamic, interactive mapping tools that provide access to the vast collection of spatial data available at the agency, as well as download links for our authoritative …

Jan 8, 2025 · From managing massive geospatial datasets to ensuring real-time query efficiency, the database you pick can define the outcome of your work. Let’s explore the top 5 spatial databases for …

Image Archive Program: The Image Archive Program maintained by the Earth Data Analysis Center at the University of New Mexico hosts the largest collection of historical aerial photography data for …

GIS users can access data and web services for their software and applications. MassGIS also coordinates GIS activities in state and local government and sets GIS data standards.

The SGID aims to be the primary source for state-wide GIS data in Utah by creating a single portal to datasets from many different agencies and organizations. With such a broad scope, SGID datasets …

Jul 1, 2025 · This page contains a categorised list of links to over 500 sites providing freely available geographic datasets - all ready for loading into a Geographic Information System.