Environmental advocacy group dedicated to conserving and recovering native and naturally functioning ecosystems in the Southern Rockies and adjoining Great Plains. News and information about activities.

Preserves and interprets the natural and cultural history of the Northern Rocky Mountains. Website includes educational materials and other information about research, exhibits and programs on natural history, archaeology, and related topics.

Organization working with communities throughout the Rocky Mountain West and across North America to reduce the social, economic and environmental problems caused by oil and gas development. Includes information about issues and activities.