PROJCRS["RGF93 v1 / CC45",BASEGEOGCRS["RGF93 v1",DATUM["Reseau Geodesique Francais 1993 v1",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4171]],CONVERSION["France Conic Conformal zone 4",METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],PARAMETER["Latitude of false origin",45,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8821]],PARAMETER["Longitude of false origin",3,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude of 1st standard parallel",44.25,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude of 2nd standard parallel",45.75,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8824]],PARAMETER["Easting at false origin",1700000,LENGTHUNIT["metre",1],ID["EPSG",8826]],PARAMETER["Northing at false origin",4200000,LENGTHUNIT["metre",1],ID["EPSG",8827]]],CS[Cartesian,2],AXIS["easting (X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing (Y)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Cadastre, engineering survey."],AREA["France - mainland onshore between 44°N and 46°N."],BBOX[44,-1.46,46,7.71]],ID["EPSG",3945]]