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.
TRACE project’s three principal investigators in Puerto Rico: Sasha Reed (left-USGS), Tana Wood (middle-US Forest Service), and Molly Cavaleri (right-Michigan Tech) (2010).