The GOES-R PLT Field Campaign Cloud Physics Lidar (CPL) dataset consists of backscatter coefficient, lidar depolarization ratio, layer top/base height, layer type, particulate extinction coefficient, ice water content and layer/cumulative optical depth collected from the Cloud Physics Lidar (CPL) flown on the NASA ER-2 aircraft during the GOES-R Post Launch Test (PLT) field campaign. The GOES-R PLT field campaign took place from March to May of 2017 in support of post-launch L1b and L2+ product validation of the Advanced Baseline Image (ABI) and the Geostationary Lightning Mapper (GLM). The Cloud Physics Lidar (CPL) is a multi-wavelength backscatter lidar that provides multi-wavelength measurements of cirrus and aerosols with high temporal and spatial resolution. Data files are available from March 23, 2017 through May 17, 2017 in HDF-5 format with layer information in ASCII text files. Browse imagery files in GIF format are also available.