proj4.defs("EPSG:6263","+proj=col_urban +lat_0=4.81359361111111 +lon_0=-75.6939513888889 +x_0=1153492.012 +y_0=1024195.255 +h_0=1500 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");