The water line is an important line used for mapping coastal change. However, it is also sensitive to changes in tides, waves, and storms and can vary in position considerably over short periods of times. The historic coastal change dataset spans several decades, and at this timescale it is useful to map a shoreline proxy that is less sensitive to short term variability. We primarily mapped the edge of vegetation on sandy coasts to detect longer-term (years to decades) patterns of coastal erosion and accretion. We primarily mapped the cliff top on rocky coasts, and the storm ridge on gravel coasts.