using the excerpt from sidney lanier's the song of the chattahoochee describe the geographic obstacles that the chattahoochee river faces on its route from the blue ridge region to the gulf of mexico. what dose sidney lanier imply are the benefits of the river to georgia's economy?

Geographic obstacles; the river begins in the blue ridge mountains of georgia, in habersham county, and flows into hall county. During its course, the river includes rapids and waterfalls, and its bed narrows and widens, various plants growing or trailing their branches in the river, weeds, grass, trees, minerals common to the region. The benefits; the river waters the plains, fields, flowers, and turning the waterwheels of mills.