About this map:

This map shows the relief of terrain in northern Guam through a GIS hillshading technique (hypsometric tinted shaded relief). This approach creates an illusion of viewing terrain in 3D. The layer was created from the 2-m resolution LiDAR-derived DEM by means of the Spatial Analysis Tool. LiDAR data were collected in 2007 by JALBTX for the Government of Guam.