The word 峡谷 is formed by combining two pictographic characters that each depict a distinct natural landform to create a specific, composite image. The first character, 峡 (xiá), represents a steep, narrow gorge or pass between mountains, evoking a sense of constriction and height. The second, 谷 (gǔ), depicts a valley, often with a stream running through it, suggesting an open, lower expanse. When placed together, they sequentially visualize the geographical feature: first the imposing, close walls of the gorge (峡), which then open into or define the longer, deeper valley (谷) below, perfectly forming the concept of a "canyon".