Question: Whicn airport, Tri-Cities Airport or Montrose Regional Airport, is a non-towered public airport on the northwest side of Montrose?
Sentence (from "Montrose Regional Airport"): Montrose Regional Airport (IATA: MTJ, ICAO: KMTJ, FAA LID: MTJ) is a non-towered public airport on the northwest side of Montrose, in zip code 81401 in southwestern Colorado.
Relevant evidence: Yes