The mountain you refer to is called Jabal al-Lawz, which is near the city of Tabuk in north western Saudi Arabia. Below is a link to an article about the history of the exodus. Very interesting indeed!
https://michaelruark.wordpress.com/2013/02/22/mount-sinai-in-arabia-jebel-el-lawz/
RE: There is a Mountain in Saudi-Arabia that has been hidden from the world due to its incredible historic value.