Imagery provided by the Geographic Information Network of Alaska's (GINA) web mapping service were used to delineate shorelines from 1955, 1982, and 2010. 1955 orthoimagery collected by the USGS and provided by GINA as a web mapping service (ogc.gina.alaska.edu) was used to delineate the 1955 shoreline. Imagery from the Alaska High-Altitude Aerial Photography (AHAP) program was provided GINA as a web mapping service (ogc.gina.alaska.edu) to delineate the 1982 shoreline. Imagery from the Statewide Digital Mapping Initiative (SDMI) provided as a web mapping service (wms.alaskamapped.org) by GINA was used to delineate the 2010 shoreline
