BOUNDCRS[SOURCECRS[PROJCRS["NAD27 / UTM zone 4N",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["UTM zone 4N",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",-159,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.9996,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",500000,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["United States (USA) - between 162°W and 156°W - Alaska and offshore continental shelf (OCS)."],BBOX[50.98,-162,74.71,-155.99]],ID["EPSG",26704]]],TARGETCRS[GEOGCRS["NAD83(CSRS98)",DATUM["NAD83 Canadian Spatial Reference System",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 minute second hemisphere",0.0174532925199433]],AXIS["geodetic longitude (Long)",east,ORDER[2],ANGLEUNIT["degree minute second hemisphere",0.0174532925199433]],USAGE[SCOPE["Geodesy."],AREA["Canada - Alberta; New Brunswick; Saskatchewan; Prince Edward Island; and Quebec."],BBOX[44.61,-120,62.56,-57.1]],ID["EPSG",4140]]],ABRIDGEDTRANSFORMATION["NAD83 to NAD83(CSRS98) (3)",METHOD["NTv2",ID["EPSG",9615]],PARAMETERFILE["Latitude and longitude difference file","AB_CSRS.DAC"],USAGE[SCOPE["Transformation of coordinates at 1m to 2m level of accuracy."],AREA["Canada - Alberta."],BBOX[48.99,-120,60,-109.98]],ID["EPSG",1602],REMARK["This gridded difference file AB_CSRS.DAC will need to be renamed to AB_CSRS.gsb to run in some software suites. Formats identical, but AB file is provincial fit only."]]]