Monte Sano Nature Preserve is, at 1,107 acres (448 ha), one of the largest urban nature preserves in the US and is located on Monte Sano Mountain in Huntsville, Alabama. The Land Trust of North Alabama manages the nature preserve and Land Trust volunteers have created 23+ miles of public trails. Residents and visitors alike enjoy the multi-use trails for hiking, biking, running, bird watching, environmental education, and general recreation. The trail system was honored in 2011 by the Department of the Interior as National Recreation Trails making them the first NRT trails in Madison County.