desert or mountain of the dried-up ground, a general name for the whole mountain range of which Sinai was one of the summits ( Exodus 3:1 ; 17:6 ; 33:6 ; Psalms 106:19 , etc.). The modern name of the whole range is Jebel Musa. It is a huge mountain block, about 2 miles long by about 1 in breadth, with a very spacious plain at its north-east end, called the Er Rahah, in which the Israelites encamped for nearly a whole year. (See SINAI .)

These dictionary topics are from
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.