PROJCRS["Sister Islands National Grid 1961",BASEGEOGCRS["SIGD61",DATUM["Sister Islands Geodetic Datum 1961",ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4726]],CONVERSION["Cayman Islands TM (ft)",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",-81,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.9996,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",1640419.9475,LENGTHUNIT["foot",0.3048],ID["EPSG",8806]],PARAMETER["False northing",0,LENGTHUNIT["foot",0.3048],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["(E)",east,ORDER[1],LENGTHUNIT["foot",0.3048]],AXIS["(N)",north,ORDER[2],LENGTHUNIT["foot",0.3048]],USAGE[SCOPE["Cadastre, engineering survey, topographic mapping."],AREA["Cayman Islands - Little Cayman and Cayman Brac."],BBOX[19.63,-80.14,19.78,-79.69]],ID["EPSG",6129]]