BOUNDCRS[SOURCECRS[PROJCRS["DRUKREF 03 / Trongsa TM",BASEGEOGCRS["DRUKREF 03",DATUM["Bhutan National Geodetic Datum",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",5264]],CONVERSION["Trongsa TM",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",90.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",1,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",250000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",-2500000,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["Cadastre, engineering survey."],AREA["Bhutan - Trongsa district."],BBOX[27.13,90.26,27.79,90.76]],ID["EPSG",5307]]],TARGETCRS[GEOGCRS["DrukRef23",DATUM["National Reference Frame of Bhutan 2023",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["Bhutan."],BBOX[26.7,88.74,28.33,92.13]],ID["EPSG",11226],REMARK["Replaces DRUKREF 03 (CRS code 5264)."]]],ABRIDGEDTRANSFORMATION["DRUKREF 03 to DrukRef23 (1)",METHOD["NTv2",ID["EPSG",9615]],PARAMETERFILE["Latitude and longitude difference file","d03tod23.gsb"],USAGE[SCOPE["Transformation of coordinates at 0.1m level of accuracy."],AREA["Bhutan."],BBOX[26.7,88.74,28.33,92.13]],ID["EPSG",11337],REMARK["Derived at 5753 points."]]]