BOUNDCRS[SOURCECRS[PROJCRS["NAD83 / TWDB GM",BASEGEOGCRS["NAD83",DATUM["North American Datum 1983",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4269]],CONVERSION["TWDB Groundwater Modeling (US survey foot)",METHOD["Albers Equal Area",ID["EPSG",9822]],PARAMETER["Latitude of false origin",31.25,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8821]],PARAMETER["Longitude of false origin",-100,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude of 1st standard parallel",27.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude of 2nd standard parallel",35,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8824]],PARAMETER["Easting at false origin",4921250,LENGTHUNIT["US survey foot",0.304800609601219],ID["EPSG",8826]],PARAMETER["Northing at false origin",19685000,LENGTHUNIT["US survey foot",0.304800609601219],ID["EPSG",8827]]],CS[Cartesian,2],AXIS["easting (X)",east,ORDER[1],LENGTHUNIT["US survey foot",0.304800609601219]],AXIS["northing (Y)",north,ORDER[2],LENGTHUNIT["US survey foot",0.304800609601219]],USAGE[SCOPE["Mapping and data analysis for Texas Water Development Board groundwater modeling."],AREA["United States (USA) - Texas."],BBOX[25.83,-106.66,36.5,-93.5]],ID["EPSG",10481]]],TARGETCRS[GEOGCRS["NAD83(CSRS)v4",DATUM["North American Datum of 1983 (CSRS) version 4",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",8246]]],ABRIDGEDTRANSFORMATION["NAD83 to NAD83(CSRS)v4 (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",9244],REMARK["This gridded difference file AB_CSRS.DAC may need to be renamed to AB_CSRS.gsb or AB_CSRSV4.gsb to run in some software. Formats identical, but AB file is provincial fit only. Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1702."]]]