SS3F.26 Locate major topographical features on a physical map of the United States a. Locate major rivers of the United States of America: Mississippi, Ohio, Rio Grande, Colorado, Hudson, and St. Lawrence b. Locate major mountain ranges of the United States of America: Appalachian and Rocky This product includes: -PowerPoint that has maps and interesting facts about the major US rivers and mountains. Also, it includes a printable guide to use in interactive notebooks. Rivers: -Mississippi River