EPSG_4409: "+proj=tmerc +lat_0=0 +lon_0=-129 +k=0.9996 +x_0=500000.001016002 +y_0=0 +ellps=clrk66 +nadgrids=NTv2_0.gsb +units=us-ft +no_defs +type=crs" = '+proj=tmerc +lat_0=0 +lon_0=-129 +k=0.9996 +x_0=500000.001016002 +y_0=0 +ellps=clrk66 +nadgrids=NTv2_0.gsb +units=us-ft +no_defs +type=crs'
NAD27 / BLM 9N (ftUS)
US survey foot256.84,-132,35.38,-126