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.
Map depicting the location of study sites. The map was generated using ArcMap (version 10.5; ESRI, Inc.) with topographical basemap content from ESRI, the United States Geological Survey, and the United States National Oceanic and Atmospheric Administration.
