TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under contract. The area surveyed is approximately 730 square miles and covers the lowlands for Mason County. It also includes the Chehalis River in Grays Harbor County and a section of the Dugeness River in Clallam County. All data was collected during ideal conditions (leaf-off). The LAS files were derived from all returns ASCII files that contain the X,Y,Z values of all the LiDAR returns collected during the survey mission. The GPS time, scan angle and return numbers of each point were preserved in the conversion from ASCII to LAS. Futher details are available in the Process Steps below. No ancillary data, such as intensity, is available for this data. Initially this dataset was flown in 2002 with a 50% overlap between flight lines. Due to the overlap the nominal point spacing of the dataset is 1.0 meter. This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.