a mountain range, particularly a steep and jagged one

a geographic term referring to a mountainous area

पहाड़ी क्षेत्र

English Usage: We hiked through the sierra during our expedition.

Hindi Usage: हमने अपनी खोज में सिएरा के माध्यम से ट्रेकिंग की।

to sierra means to move or progress through steep terrain (not commonly used)

ढलान में आगे बढ़ना

English Usage: We had to sierra through the rocky path.

Hindi Usage: हमें चट्टानी रास्ते के माध्यम से आगे बढ़ना पड़ा।