U.S. Environmental Protection Agency seeks to help river communities restore their environment, revitalize their economy, renew their culture and preserve their history

site for the EPA's Office of Water

assists governments in finding solutions to problems in waters that lie along, or flow across, the border between the United States and Canada

the U.S. EPA provides an overview of the potential effects of climate change on water resources and the Nation’s clean water and safe drinking water programs and describes specific actions the National Water Program will take to adapt program implementation in light of climate change (pdf)

the U.S. Fish and Wildlife Service produces information on the characteristics, extent, and status of America's wetlands and deepwater habitats

homepage for the U.S. national Wild and Scenic River System

characterizes the quality of selected rivers and aquifers used as a supply source to community water systems in the United States

the U.S. Environmental Protection Agency's Office of Water, highlighting government programs and policies regarding water

committed to the wise management of Alberta’s water quantity and quality for the benefit of Albertans now and in the future

electronic access to a wealth of information about water and agriculture from the National Agricultural Library

US Forest service site that characterizes wild and scenic rivers and explains the Act that allows free-flowing rivers to be so designated