Contours interpolated in ArcMap using AltaLIS LIDAR 15 DEM.

The AltaLIS LiDAR15 DEM is derived from the ground surface of a LiDAR (Light Detection and Ranging) point cloud with 30cm vertical accuracy and 1m horizontal resolution. The elevations of the 15 meter post spacing coordinates are derived from the TIN of the full LiDAR ground surface. DEM collected with LiDAR technology enhances the quality of relief, hydrological features, sub-catchment boundaries (basins and watersheds) and drainage networks. (AltaLIS)