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.
The United States Geological Survey Virginia and West Virginia Water Science Center (USGS VA-WV-WSC) and City of Roanoke, Virginia assembled this data release to support a report that analyzed...
data.gov
An official website of the GSA's Technology Transformation Services