in Mansfield. Approaching its fiftieth anniversary in 2016, Joshua's Trust is still primarily an all-volunteer organization, with one part-time conservation coordinator. The Trust relies on volunteers for most of its activities, including funding, stewardship, office work and outreach efforts. The Trust's logo is a replica of the signature mark made by the original Joshua. It is referred to as "Joshua's Mark" or sometimes, colloquially, as "the critter". Mission Joshua's Trust was founded to preserve the rural character of the area, to acquire and assure the preservation of the land and natural resources, to acquire and protect land having a unique or historical significance to the area, and to assist in the development of an open space program. In addition, the Trust engages in and promotes education, training, and scientific study of the natural world. Area served The towns served by Joshua's Trust contain some of the last undeveloped property in the New York-Boston corridor. Significant swaths of undeveloped forest, rivers and watersheds of major significance and farms populate the area. Pilots, flying overhead at night, were struck by the lack of artificial illumination in the as-yet rural and undeveloped area. This gave rise to the nicknames like "the Quiet Corner" and "the Last Green Valley". As of 2009, 70% of the area was still field, forest or farmland. In 1994, the surrounding Shetucket-Quinebaug Heritage Corridor, nestled between the Quinebaug and Shetucket Rivers, was granted National Heritage Corridor status by the National Park Service. In 1999, the area was enlarged, creating a 35 town heritage corridor which includes all of the Joshua's Trust towns and villages. As of 2011, Joshua's Tract Conservation and Historic Trust owns preserves and/or conservation easements in the towns and villages of Andover, Ashford, Chaplin, Columbia, Coventry, Eastford, Franklin, Hampton, Lebanon, Mansfield, Mansfield Center, Scotland, Storrs, Tolland, Willington, Windham, and Woodstock. In Mansfield, Trust properties include Proposal Rocks, Coney Rock, Wolf Rock, and the Gurley-Mason Mill Site. Method The Trust works with landowners by accepting and managing donated land, raising funds when a significant property is offered at reduced price, and by contributing to municipal open space or agricultural preservation efforts. Recently, property owned "in fee", has been acquired as a result of subdivision activity, when municipal open space set-asides occur. Joshua's Trust also works with landowners who want to protect their land with conservation easements, which are legal restrictions on a parcel's use based on the