State Environmental Agencies
Alaska Department of Environmental Conservation.
California Environmental Protection Agency.
Colorado Department of Public Health and Environment.
Hawaii Department of Land and Natural Resources.
Idaho Environmental Agencies.
Kansas Department of Health and Environment.
Montana Department of Environmental Quality.
Nebraska Natural Resources Commission.
Nevada Division of Environmental Protection.
New Mexico Environment Department.
North Dakota Department of Health - Environmental Health Section.
Oklahoma Department of Environmental Quality.
Oregon Department of Environmental Quality.
South Dakota Department of Environment and Natural Resources.
Texas Natural Resources Conservation Commission.
Utah Department of Environmental Quality.
Washington State Department of Ecology.
Wyoming Department of Environmental Quality.

National Parks
National Park Service - ParkNet - includes all US parks, info, maps

Organizations
Defenders of Wildlife - good source for wolves and other wildlife info
Earth Share
Greater Yellowstone Coalition
Sierra Club - national organization home page
Southern Utah Wilderness Alliance
Wilderness Society