These coordinates are worth checking out:
28°35’3.82”N
35°22’43.57”E
There is an ancient pillar on each side of the Red Sea where the the Israelites were marked as crossing in Moses’ day.
A shade west of those coordinates is a traditional location for the mountain. The coordinates place one at/near a delta-shaped placement of stones thought to be an altar of sacrifice constructed under the auspices/by Moses.
http://www.diggingsonline.com/pages/rese/arts/other/wyatt01.htm
http://www.nwtv.co.uk/pages/travel/middle/egypt/redsea.htm