The Apalachicola-Chattahoochee-Flint River Basin (the ACF River Basin) is the drainagebasin, or watershed, of the Apalachicola River, Chattahoochee River
Saglek Basin of sediment as rivers drained directly into the newly formed Hudson Bay. Much of the river's flow was taken up by the Mackenzie River Basin, leaving
largest single watershed is the Humboldt River drainage of roughly 17,000 sq mi (44,000 km2). Most Great Basin precipitation is snow, and the precipitation