 The group's first major achievement was a $3.4 million endowment, raised between 1991 and 1996, to maintain the park's carriage road system in perpetuity, which leveraged federal funds to fully restore the road system.Subsequent projects and partnerships included Acadia Trails Forever, the first endowed trail system in an American national park with $13 million raised between 1999-2001, and the Island Explorer, a free, propane-powered bus system serving the park and local communities since 1999.The Acadia Youth Conservation Corps was established by FOA and endowed by an anonymous donor in 1999 to employ 16 high school students in maintenance of trails and carriage roads in the summer months.