ˈɑːɹ.ˈiː. mˈaʊntɪn sˈɛkəndɚɹi ɪz ɐ pˈʌblɪk hˈaɪ skˈuːl ɪn nˈɔːɹðɚn lˈæŋɡli, bɹˈɪɾɪʃ kəlˈʌmbiə ænd ɪz ɐ pˈɑːɹt ʌv skˈuːl dˈɪstɹɪkt θˈɜːɾi fˈaɪv lˈæŋɡli.
R.E. Mountain Secondary is a public high school in northern Langley, British Columbia and is a part of School District 35 Langley.