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.
Red box on map indicates general study area. (Base map taken from Thormodsgard, J.M., 2009, Greater Platte River Basins—Science to sustain ecosystems and communities: U.S. Geological Survey Fact Sheet 2009-3097, 6 p.)
