- a mountain range extending from S Wyoming into N Colorado.
- two parallel mountain chains in Mexico, bordering the central plateau on the E and W, and extending SE into N Guatemala.
- a town in S California.
- the main mountain system of Mexico, extending for 2500 km (1500 miles) southeast from the N border: consists of the Sierra Madre Oriental in the east, the Sierra Madre Occidental in the west, and the Sierra Madre del Sur in the south. Highest peak: Citlaltépetl, 5636 m (18 492 ft) (disputed)
