| A | B |
| lugged | carried with great difficulty |
| sheer | very steep |
| canyon | a deep valley with steep walls on both sides, formed by running water |
| anxious | feeling nervous or afraid |
| ledges | flat spaces like shelves on the sides of clifs or rockwalls |
| scouted | observed or explored carefully for information |
| scrawny | thin and bony; skinny |
| banks | land that forms the river's edge |
| rapids | a group of small waterfalls in a river where water flows very fast |
| rustle | a soft, fluttering sound |