Deuteronomy 3:15-16

Ammonites : the tribe/nation of people descended from Ben-Ammi, Lot's son,Territory of the tribe/nation of Ammon
(31° 57´, 35° 55´)

Arnon : a river forming the southern border of Ammon east of the Dead Sea
(31° 25´, 35° 40´)

Gadites : the tribe of Gad as a whole

Gilead : a mountainous region east of the Jordan & north of the Arnon to Hermon,son of Machir son of Manasseh; founder of the clan of Gilead,father of Jephthah the judge,son of Michael of the tribe of Gad
(32° 2´, 35° 43´)

Jabbok : a river flowing west into the Jordan River 40 km north of the Dead Sea
(32° 11´, 35° 40´)

Machir : son of Manasseh (Joseph); father of Hezron's wife and of Gilead,son of Ammiel at Lo-Debar; Mephibosheth's friend

Reubenites : the tribe of Reuben