BOUNDCRS[SOURCECRS[PROJCRS["NAD27 / MTM zone 6",BASEGEOGCRS["NAD27",DATUM["North American Datum 1927",ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4267]],CONVERSION["MTM zone 6",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",-67.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.9999,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",304800,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",0,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["(E)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["(N)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["Canada - Labrador - west of 66°W."],BBOX[52.05,-67.81,55.34,-66]],ID["EPSG",32086]]],TARGETCRS[GEOGCRS["NAD83",DATUM["North American Datum 1983",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic latitude (Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic longitude (Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],USAGE[SCOPE["Geodesy."],AREA["North America - onshore and offshore: Canada. Puerto Rico. United States (USA). US Virgin Islands. British Virgin Islands."],BBOX[14.92,167.65,86.46,-40.73]],ID["EPSG",4269],REMARK["Longitude is POSITIVE EAST. The adjustment included connections to Greenland and Mexico but the system was not adopted there. For applications with an accuracy of better than 1m replaced by NAD83(HARN) in the US and PRVI and by NAD83(CSRS) in Canada."]]],ABRIDGEDTRANSFORMATION["NAD27 to NAD83 (8)",METHOD["NADCON5 (2D)",ID["EPSG",1074]],PARAMETERFILE["Latitude difference file","nadcon5.nad27.nad83_1986.alaska.lat.trn.20160901.b"],PARAMETERFILE["Longitude difference file","nadcon5.nad27.nad83_1986.alaska.lon.trn.20160901.b"],USAGE[SCOPE["Geodesy."],AREA["United States (USA) - Alaska."],BBOX[51.3,172.42,71.4,-129.99]],ID["EPSG",8549],REMARK["Uses NADCON5 method which expects longitudes positive east in range 0-360°; source and target CRSs have longitudes positive east in range -180° to +180°. Accuracy at 67% confidence level is 0.5m onshore, 5m nearshore and undetermined farther offshore."]]]