Steep-walled valleys with a narrow depression, cut by streams and rivers, are called:

Correct answer: V-shaped. Rivers cut narrow, steep-sided V-shaped valleys, especially in mountainous areas.

Background: Rivers cut straight downward in mountains, forming narrow valleys with steep V-shaped walls.

• C-shaped: “C-shaped” is not a standard valley type.
• O-shaped: “O-shaped” is not a standard valley type.
• U-shaped: U-shaped valleys are carved by glaciers.

Did you know? The Grand Canyon is a famous river-cut gorge. Glaciers carve wider, U-shaped valleys.

Memory trick: River = V; Glacier = U.