An official website of the United States government
Here’s how you know
Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( Lock A locked padlock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
3/3/2014 • 10 years ago
We now have the majority of our GIS data layers on the Open Source Web site GitHub. Developers can consume the data for Web maps using either Open Source map clients or GIS software. The layers are in GeoJSON format but can be downloaded in a variety of different formats. They can be individually downloaded or viewed within the MapBox feature on the site. Keep checking back for new updates!