Howard County, MD contracted to collect detailed ground elevation data from Aerial LiDAR Sensors for approximately 256 Square Miles as part of the CATSII, 2011 Maryland Statewide Orthophoto Project. The LiDAR data was collected in accordance with FEMA Procedure Memorandum No. 61 - Standards for LiDAR and Other High Quality Digital Topography, for which LiDAR data is collected in accordance with the USGS LiDAR Guidelines and Base Specifications, v13, dated February 22, 2010, for the National Geospatial Program, except as noted in FEMA's Procedure Memorandum No. 61. This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.