Ames
Cedar River Environmental GroupLong-term sustainability of the Cedar River and its tributaries
Dubuque Audubon Society Friends of the Prairie Learning Center Iowa Environmental Council Iowa Natural Heritage Foundation Iowa Native Plant Society Iowa Prairie Network Johnson County Heritage Trust Loess Hills Audubon SocietySioux City
Nature Conservancy of Iowa Sierra Club - Iowa Chapter Sierra Club - Cedar Prairie GroupNortheast Iowa
Sierra Club - Cedar Wapsie GroupCedar Rapids
Sierra Club - Central Iowa GroupDes Moines
Sierra Club - Eagle View GroupQuad Cities
Sierra Club - Iowa City GroupIowa City
Sierra Club - Leopold GroupSoutheast Iowa
Sierra Club - NW Iowa GroupSioux City
Sierra Club - White Pine GroupDubuque
