Government Agencies
Minnesota Department of Natural Resources
Minnesota Office of Environmental Assistance
Minnesota Pollution Control Agency
National Park Service
US Bureau of Land Management
US Bureau of Reclamation
US Department of Agriculture
US Department of Agriculture Forest Service
US Department of the Interior
US Environmental Protection Agency
US Fish & Wildlife Service
US Geological Survey

Resources
e-Nature.com
Earth Day Network
Earthwatch Institute
Green Facts
Manomet Center for Conservation Sciences
National Audubon Society
The Environment Network
The National Arbor Day Foundation

Other

minnesotawaters.org