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 showing (a) the Yahara Lake District and (b) the Northern Highlands Lake District, both part of the North Temperate Lakes Long-Term Ecological Research (NTL-LTER) site, and (c) the broader regional context of the upper Great Lakes region of North America, including the Laurentian Great Lakes.
