in 1986, the sarus crane was found here. in 1991, tram chim became provincial-level natural reserve to protect subspecies of the saurs crane "grus antigone sharpii". in 1994, the reserve became a national natural reserve by the decision circular 4991/kgvx. the protected area covers . in september 1998, the area was adjusted to . in 1998, this area became tram chim national park by the governmental decision 253/1998/qđ dated december 29, 1998.