Grand Canyon National Park announced Monday that it is closing Grand Canyon Pioneer Cemetery to new burials almost a century after it first opened.

The cemetery opened even before the Grand Canyon became a national park in 1919, though it was not formally dedicated until 1928. Some of the Grand Canyon's pioneers are buried in the park.

The closure comes due to lack of space, according to the park, but a release said burials may continue for those with immediately family already interred in the cemetery.

The cemetery will remain open to visitors as a reminder of the pioneers who settled in the Grand Canyon area.

There are more than 390 individual graves at the cemetery, according to the park's release.

If you think you may have a reservation in the cemetery, you can contact the park's permitting office at 928-638-7707 or email a copy of your reservation to grca_permits_mail@nps.gov to confirm.

The park's website says only people who have lived at the Grand Canyon for at least three years or made a significant and substantial contribution to the park can be buried there.