Map data collected, processed, and edited by Matthew Petroff. Topography and some other features derived from 2014 Hurricane Sandy Lidar 1-meter DEM; elevation contours are in meters. Some features derived from Connecticut 2012 Multispectral Orthophotography. Hydrography derived from elevation data and near-infrared orthoimagery. Data collected with carrier-phase enhanced GNSS measurements 2012–2016. Data may be incomplete.