Arkansas Grand Prairie Irrigation Project
   Details the pumping station on the White River, channels, pipelines, and associated structures bringing surface water to water-depleted Eastern Arkansas.
   http://www.mvm.usace.army.mil/grandprairie/

Arkansas Natural Heritage Commission
   Preserves the state's natural heritage biodiversity by identifying and protecting rare and endangered species and natural areas. Includes species lists, state natural areas information, and other topics.
   http://www.naturalheritage.org/

Keep Arkansas Beautiful
   Helps preserve the natural scenic beauty and quality environment through activities and programs for preventing litter, encouraging recycling, and enhancing the state's scenic values by promoting beautification. Programs, events, and newsletters.
   http://www.keeparkansasbeautiful.com/