https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/OPR/Projects/NV_Las_Vegas_Region_2016_A16/NV_LasVegas_QL1_2016/TIFF/USGS_OPR_NV_Las_Vegas_Region_2016_A16_LV_ClarkCo_QL1_DTM.tif