Sierra Madre

[ see-er-uh mah-drey; for 2 also Spanish syer-rah mah-thre ]
/ siˈɛr ə ˈmɑ dreɪ; for 2 also Spanish ˈsyɛr rɑ ˈmɑ ðrɛ /

noun

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.

British Dictionary definitions for sierra madre

Sierra Madre
/ (Spanish ˈsjɛrra ˈmaðre) /

noun

(functioning as singular) 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)