Pour-over. Also called a "dry fall" or "pour-off," usually a dry waterfall. A place in a wash or canyon where water, if it were
flowing, would "pour over" a ledge to form a waterfall. Note that pour-overs always look higher and
harder to climb from above.
Waterfall. A place where a perennial stream or river falls or cascades over a cliff.
Happy hiking!
Note: All distances, elevations, and other facts are approximate.