Locate free GIS maps and property maps in state, county, and local government offices

Build interactive web maps with ArcGIS Online, Esri's web-based mapping software. Gain new perspectives and enhanced details as you interact with data, zoom in, and search on the map.

Nov 3, 2022 · Use The National Map Viewer to explore GIS data, see availability of USGS topographic maps, and create your own web map.

GIS connects data to a map, integrating location data (where things are) with all types of descriptive information (what things are like there). This provides a foundation for mapping and analysis that is …

The Union County GIS team supports data development, mapping, and application development efforts that support various County agencies and departments. What types of data can I find on your maps …

Jun 1, 2025 · GIS stands for Geographic Information Systems. A GIS stores, analyzes, and visualizes data for geographic positions on Earth’s surface. It’s a computer-based tool that examines spatial …

While digital GIS dates to the mid-1960s, when Roger Tomlinson first coined the phrase "geographic information system", [5] many of the geographic concepts and methods that GIS automates date …

Oct 28, 2025 · A geographic information system (GIS) is a computer system for capturing, storing, checking, and displaying data related to positions on Earth’s surface. GIS can show many different …

Dec 16, 2024 · GIS technology has evolved from basic cartographic maps to sophisticated digital systems powered by artificial intelligence and machine learning. Early GIS applications focused on …

We provide maps of various sizes and geographic areas to the public, as well as various local, state, and federal government agencies.