BOUNDCRS[SOURCECRS[PROJCRS["ATS77 / MTM Nova Scotia zone 4",BASEGEOGCRS["ATS77",DATUM["Average Terrestrial System 1977",ELLIPSOID["Average Terrestrial System 1977",6378135,298.257,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4122]],CONVERSION["MTM Nova Scotia zone 4",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",-61.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.9999,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",4500000,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 - Nova Scotia - east of 63°W."],BBOX[44.64,-63,47.08,-59.73]],ID["EPSG",2294]]],TARGETCRS[GEOGCRS["NAD83(CSRS)v3",DATUM["North American Datum of 1983 (CSRS) version 3",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["Horizontal component of 3D system."],AREA["Canada - onshore and offshore - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon."],BBOX[38.21,-141.01,86.46,-40.73]],ID["EPSG",8240]]],ABRIDGEDTRANSFORMATION["ATS77 to NAD83(CSRS)v3 (3)",METHOD["NTv2",ID["EPSG",9615]],PARAMETERFILE["Latitude and longitude difference file","NS778301.gsb"],USAGE[SCOPE["Transformation of coordinates at 1m to 2m level of accuracy."],AREA["Canada - Nova Scotia onshore."],BBOX[43.41,-66.28,47.08,-59.73]],ID["EPSG",9235],REMARK["Can be taken as an approximate transformation ATS77 to WGS 84 - see code 1851. Replaced by ATS77 to NAD83(CSRS)v6 (4) (transformation code 9106)."]]]