Historical maps depicting the Norton Point breach (arrow). When the breach closed in 1969, with the exception of a brief period between 1976 and 1977, it remained that way until 2007. In 2005 the intact barrier beach enclosed the narrow Swan Pond south of Wasque.
Copyright (c) Brian R. Hall
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Notes:
1694 map by Simon Athearn; 1781 map by Joseph F.W. Des Barres; 1830 map by Henry Crapo; 1858 map by H.F. Walling; 1890 map by US Coastal Survey; 1938, 1960, and 1969 aerial photos from USGS Earth Explorer; 2005 aerial photo from MassGIS (Office of Geographic Information (MassGIS), Commonwealth of Massachusetts, MassIT).