| A | B |
|---|
| arid | dry |
| basin | area of land largely enclosed by higher land |
| canyon | deep, narrow valley with steep sides |
| desert | dry, barren area of land where few plants can grow |
| mountain peak | pointed top of a mountain |
| oasis | place in desert where water is found in a spring or a well, making growing of crops possible |
| plateau | area of high, flat land |
| reservoir | lake where water is stored for future use |
| waterfall | water falling over a steep drop in the land |
| butte | steep stand-alone hill with flat top found in western US |
| Great Salt Lake | largest natural lake west of the MS River, with no natural drainage & as water evaporates, salt remains |
| mountain pass | narrow gap through a mountain range |
| mountain range | row or chain of mountains |
| Old Faithful | most famous geyser in Yellowstone National Park which erupts & shoots water up to 170', 20-30 times a day |
| Roe River | world's shortest river near Gt. Falls, MT-travels to the MO River, less than the length of a football field |
