File consists of records documenting the Buckhorn Wilderness Centre (BWC) which was established in 1965, with Sadler as the founding president. The Otonabee Region Conservation Authority (ORCA) eventually became involved in operating, and later, in selling the Centre. File includes newsletters (1968), ORCA meeting minutes (1971, 1991), newspaper clippings and correspondence (1969-1972, 1985-1991) - agreement between ORCA and Males and Morgan (1991), BWC history, audit report, BWC board of directors meeting minutes (1968-1971), field trip information, letters patent incorporating BWC (1966), constitution and by-laws, and a financial statement (1968).