Punxsutawney Municipal Airport is a small regional non-towered airport located 3 miles North-East of Punxsutawney, Pennsylvania.
Vernon Regional Airport, (IATA: YVE, ICAO: CYVK) , is a small, non-towered airport located 1.8 NM southwest of Vernon, British Columbia, Canada.
 It is one of the few airports in the Okanagan Valley that can offer skydiving because all commercial operators must give written consent to a skydiving company for skydiving to occur, something which is not feasible at a larger airport like Kelowna International Airport.
A non-towered airport is an airport with no operating tower, or air traffic control unit.
 The vast majority of the world's airports are non-towered, and even airports with control towers may operate as non-towered during off-hours, typically during the night.
Wichita Dwight D. Eisenhower National Airport (IATA: ICT, ICAO: KICT, FAA LID: ICT) is a commercial airport located about 7 mi west of downtown Wichita, Kansas, United States.
 It is the largest and busiest airport in the state of Kansas.
 ICT covers 3,248 acres (1,314 ha).
Jake Arner Memorial Airport (FAA LID: 22N) is a public non-towered airport that serves Lehighton, Pennsylvania and the surrounding areas.
 The airport is home to 35 based aircraft as of 2015, and has about 13,000 aircraft movements every calendar year.
 It was surveyed at an elevation of 534 ft and 163 m above sea level.
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.
 Its two runways are at elevation 5,759 feet (1,755 m).
 MTJ covers 966 acres (391 ha) of land.
Sheboygan County Memorial Airport (IATA: SBM, ICAO: KSBM, FAA LID: SBM) is a county owned public use non-towered airport located in the Town of Sheboygan Falls, three nautical miles (6 km) northwest of the City of Sheboygan, in Sheboygan County, Wisconsin, United States.
 It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a regional general aviation facility.
 Sheboygan's National Weather Service observation station is based at the airport.
San Martin Airport (formerly "South County Airport of Santa Clara County", colloquially "South County Airport") (FAA LID: E16) (formerly Q99) is a public non-towered airport located one mile (1.6 km) east of San Martin, serving Santa Clara County, California, U.S.A. This general aviation airport covers 179 acres (72 ha) and has one runway.
 A self-service fueling facility offers 100LL aviation gasoline continuously.
 Jet-A fuel is available from a full-service truck during FBO operating hours, and major airframe and powerplant service are available.
 The FBO at South County, which serves Jet-A and 100LL is Magnum Aviation.
Ottawa/Rockcliffe Airport or Rockcliffe Airport, (IATA: YRO, ICAO: CYRO) , a former military base, is a non-towered airport located on the south shore of the Ottawa River, 4 NM northeast of Downtown Ottawa, Ontario, Canada.
 The airport is the home of the Canada Aviation Museum, which owns the field, and is used and maintained by the Rockcliffe Flying Club.
Westport Airport (FAA LID: 71K) is a privately owned, public use airport located three nautical miles (6 km) southwest of the central business district of Wichita, a city in Sedgwick County, Kansas, United States—and is in the Class C airspace of neighboring Wichita Dwight D. Eisenhower National Airport.

Question: Which is a non-towered airport, Wichita Dwight D. Eisenhower National Airport or Montrose Regional Airport?
Answer: Montrose Regional Airport