Numbers 32:31-32

Canaan : the region ofeast Mediterranean coastal land from Arvad (modern Lebanon) south to Gaza,the coast land from Mt. Carmel north to the Orontes River
(31° 41´, 34° 50´); (33° 33´, 35° 21´)

Gad : the tribe of Israel descended from Gad, the son of Jacob,the man; the son of Jacob and Zilpah,the tribe of Gad in Israel,a prophet and long time advisor to King David

Jordan : the river that flows from Lake Galilee to the Dead Sea,a river that begins at Mt. Hermon, flows south through Lake Galilee and on to its end at the Dead Sea 175 km away (by air)
(32° 18´, 35° 33´)

Reuben : the tribe of Reuben