In the Coastal Plain are the Tombigbee in the W., the Alabama (formed by the Coosa and Tallapoosa) in the W.
Distant, and in the vicinity are three great coalfields, the Warrior, the Coosa and the Cahaba.
Later, on account of the intrigues of the English traders with the Indians, the French as a means of defence established the military posts of Fort Toulouse, near the junction of the Coosa and Tallapoosa rivers, and Fort Tombecbe on the Tombigbee river.
ALABAMA RIVER, a river of Alabama, U.S.A., formed by the Tallapoosa and Coosa rivers, which unite about 6 m.
Is the Appalachian Valley (locally known as Coosa Valley) region, which is the S.
In the Appalachian Valley region the Coosa is the principal river; and in the Piedmont Plateau, the Tallapoosa.
Of the rivers which form the Alabama, the Coosa crosses the mineral region of Alabama, and is navigable for light-draft boats from Rome, Georgia (where it is formed by the junction of the Oostenaula and Etowah rivers), to about 117 m.