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 (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.
Note: This is a large dataset. To download, go to ArcGIS Open Data Set and click the download button, and under additional resources select the geodatabase option. Data layer...