Saint Louis Zoo
- Includes wildlife conservation and fun. Also has information for tourists, and areas for children.
- http://www.stlzoo.org/

Choose Environmental Excellence - Gateway Region
- Provides recycling, pollution prevention, and other environmental information to the metro St. Louis region in Missouri and Illinois.
- http://www.ceegr.org/

Riverlands Area - Missouri Corps Projects
- Dam and recreational information as furnished by the Corps of Engineers.
- http://gorp.away.com/gorp/resource/us_nra/ace/mo_river.htm

Missouri Botanical Garden
- Seventy-nine-acre facility renowned for its fundamental botanical research, horticultural display and education programs.
- http://www.mobot.org

Gateway Clean Air Program
- Seeking to improve the quality of life for all St. Louis area residents. The enhanced vehicle emissions test program will help reduce harmful emissions, which will result in cleaner cars and cleaner air, so we can all breathe easier.
- http://www.gatewaycleanair.com