Stony heap, an “island,” as it has been called, of rock about 30 miles by 20, rising 20 or 30 feet above the table-land of Bashan; a region of crags and chasms wild and rugged in the extreme. On this “island” stood sixty walled cities, ruled over by Og. It is called Trachonitis (“the rugged region”) in the New Testament (Luke 3:1). These cities were conquered by the Israelites (Deut. 3:4; 1 Kings 4:13). It is now called the Lejah. Here “sixty walled cities are still traceable in a space of 308 square miles. The architecture is ponderous and massive. Solid walls 4 feet thick, and stones on one another without cement; the roofs enormous slabs of basaltic rock, like iron; the doors and gates are of stone 18 inches thick, secured by ponderous bars. The land bears still the appearance of having been called the ‘land of giants’ under the giant Og.” “I have more than once entered a deserted city in the evening, taken possession of a comfortable house, and spent the night in peace. Many of the houses in the ancient cities of Bashan are perfect, as if only finished yesterday. The walls are sound, the roofs unbroken, and even the window-shutters in their places. These ancient cities of Bashan probably contain the very oldest specimens of domestic architecture in the world” (Porter’s Giant Cities). (See BASHAN.)
Argob
Sixty cities fell in one campaign east of the Jordan, and Deuteronomy 3 names the region: “all the region of Argob, the kingdom of Og in Bashan.” Moses recalls that Jair, a son of Manasseh, took the country and gave it his own name. It reappears much later, in 2 Kings 15, as a place connected with a murdered king and a captain named Pekah who “conspired against him.” Argob is a reminder that the stories of Israel’s early conquests stayed on the map for generations. Deuteronomy 3 is the easiest place to begin.
4 verses
Deuteronomy
And we took all his cities at that time, there was not a city which we took not from them, threescore cities, all the region of Argob, the kingdom of Og in Bashan.
And the rest of Gilead, and all Bashan, being the kingdom of Og, gave I unto the half tribe of Manasseh; all the region of Argob, with all Bashan, which was called the land of giants.
Jair the son of Manasseh took all the country of Argob unto the coasts of Geshuri and Maachathi; and called them after his own name, Bashanhavothjair, unto this day.
2 Kings
But Pekah the son of Remaliah, a captain of his, conspired against him, and smote him in Samaria, in the palace of the king's house, with Argob and Arieh, and with him fifty men of the Gileadites: and he killed him, and reigned in his room.
From Easton's Bible Dictionary
Matthew George Easton, 1897