Definition of sierra in English:
1(Especially in Spanish-speaking countries or the western US) a long jagged mountain chain.
- In the far north-west, the splinter-like peninsula of Lower California, with its high sierras, is a southward extension of the Sierra Nevada.
- It was treated to a carefully controlled, often intimate account that explored the foothills as thoroughly as the high sierras.
- This meant that Sonoran rivers, which originate in the eastern sierras, had to be diverted.