A narrow valley between hills or mountains. tipically with steep rocky walls and stream running through it?

A narrow valley between hills or mountains, characterized by steep rocky walls and often containing a stream, is commonly referred to as a canyon or gorge. These formations are typically created through erosion by water over time, resulting in dramatic landscapes. Canyons can vary in size and depth, showcasing stunning geological features and diverse ecosystems within their confines. Popular examples include the Grand Canyon in the United States and the Colca Canyon in Peru.