Tennessee Conservation League(site info)
Advocates for the conservation and sustainable use of the state's natural resources, including forests, waters, air, wildlife, and soil. Information on current issues and activities, with particular focus on wildlife and sportsmen's concerns.
http://www.conservetn.com/
3.
Tennessee Citizens for Wilderness Planning(site info)
Volunteer organization devoted to the protection and preservation of the natural environment, particularly the natural wonders (waterfalls, gorges, cliffs, sandstone arches, rivers with challenging rapids and calm pools) of the Cumberland Plateau region of Tennessee.
http://www.korrnet.org/tcwp/
Nature Conservancy of Tennessee(site info)
Preserving the plants, animals, and natural communities that represent the diversity of life on Earth by protecting the lands and waters they need to survive. Preserves and projects encompass rare remnants of nationally and globally important ecosystems in five "ecoregions" in Tennessee.
http://nature.org/wherewework/northamerica/states/...