BOUNDCRS[SOURCECRS[GEOGCRS["NTF",DATUM["Nouvelle Triangulation Francaise",ELLIPSOID["Clarke 1880 (IGN)",6378249.2,293.466021293627,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["France - onshore - mainland and Corsica."],BBOX[41.31,-4.87,51.14,9.63]],ID["EPSG",4275]]],TARGETCRS[GEOGCRS["RGF93 v2b",DATUM["Reseau Geodesique Francais 1993 v2b",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["France - onshore and offshore, mainland and Corsica (France métropolitaine including Corsica)."],BBOX[41.15,-9.86,51.56,10.38]],ID["EPSG",9782]]],ABRIDGEDTRANSFORMATION["NTF to RGF93 v2b (1)",METHOD["Geocentric translation by Grid Interpolation (IGN)",ID["EPSG",1087]],PARAMETERFILE["Geocentric translation file","gr3df97a.txt"],USAGE[SCOPE["Transformation of coordinates at 1m level of accuracy."],AREA["France - onshore - mainland and Corsica."],BBOX[41.31,-4.87,51.14,9.63]],ID["EPSG",9889],REMARK["Parameter file is from NTF to RGF93 v1 (code 9327), assuming that RGF93 v1 is equivalent to RGF93 v2b within the accuracy of the transformation. May be emulated using NTv2 method - see CT code 9891."]]]