In 1993, Wallace I. Edwards founded a trust to preserve open land in the Four Mile Creek Valley in southwest Ohio. The Four Mile Valley Conservation Trust was incorporated as an Ohio non-profit organization in 1994. On May 3, 2000, the Board of Trustees voted to change the organization’s name to Three Valley Conservation Trust and to extend the Trust’s service area to the watersheds of Seven Mile and Indian Creeks and to the watershed of Four Mile Creek north of Acton Lake in Butler and Preble Counties, Ohio.
The Trust’s service area was eventually expanded to include all of the Four Mile Creek watershed, the Twin Creek watershed, portions of the Whitewater River watershed in Butler and Preble Counties, the Elk Creek watershed, and all land in Butler County drained by eastern tributaries of the Great Miami River.The Trust hired its first Executive Director, Larry Frimerman, in 2001.
That same year, the Trust established its office on the scenic Beck property on Morning Sun Road. Today, the Trust remains a vital force in conserving the natural environment and cultural heritage of southwest Ohio.