aka Jebel Haroun.
"Hor HaHar, or Jebel Haroun in Arabic - the accepted grave of Aaron, who like Moses died before he could reach the Promised Land. But, the site is not appropriate for all tourists. The grave is atop a mountain in the Petra enclave. Particularly on the Yahrzeit, Rosh Chodesh Av, religious Jews do make the four to six hour trek to the grave, often assisted by the hire of donkeys. At the top there is a thirteenth century Moslem monument marking the spot. Any Jewish flavor to the visit is only that spirit which is self-generated by the visitor. Advance arrangements and hire of a donkey with guide are highly recommended." Source [January 2010]