A list of these areas and the known acreage of each appears below. Locations are followed by the number of plans issued or in progress and by known acreage. Acreage figures for plans which covered more than one listing were equally divided. Asterisks indicate locations not depicted on the map. A list of US Ramsar sites and the acreage of each appears below.
Numbers correspond to the map.
Five areas have been congressionally designated as National Heritage Areas. Also shown are state heritage areas and areas proposed by organizations like the National Trust for Historic Preservation. In Congressionally designated areas, the National Park Service has some oversight authority over federal actions, and Congress provides the Park Service with funds for management. A list of the counties which fall in existing and proposed heritage corridors appears below. Names appear following the number that they correspond with on the map.