public static ESRI.ArcGIS.Geometry.ISpatialReference get_spatialReference(OSGeo.OSR.SpatialReference ogrSR) { ogrSR.MorphToESRI(); string wkt; ogrSR.ExportToWkt(out wkt); ISpatialReferenceFactory4 spatialReferenceFactory = new ESRI.ArcGIS.Geometry.SpatialReferenceEnvironmentClass(); ISpatialReference sr; int bytesRead; spatialReferenceFactory.CreateESRISpatialReference(wkt, out sr, out bytesRead); return(sr); }