Rails-to-Trails Conservancy is a nonprofit organization working with communities to preserve unused rail corridors by transforming them into trails, enhancing the health of America's environment, economy, neighborhoods and people.
Scenic Hudson works to protect and restore the Hudson River and its majestic landscape as an irreplaceable national treasure and a vital resource for residents and visitors.
Hoosier Chapter, Sierra Club: current information about Club meetings in Indiana, outdoor activities, environmental news and other environmental things.