The King’s Highway, where a slave girl tumbled into teenage Elijah, was a trade route from Egypt across the Sinai Peninsula to Aqaba, north to Damascus and the Euphrates River.
In Elijah’s day, the area had many, many trees. See the Battle of Ephraim’s Wood in 2 Samuel, when the thick forest killed more soldiers than the enemy did.
But in the 14th Century, the Ottoman Turk Empire taxed trees almost out of existence.
The modern highways 35 and 15 follow this route across Jordan from Aqaba to Irbid.