Question: The MGM Grand station is a station on a transit system that is how many miles long?

Context paragraphs:
List of Copenhagen Metro stations: There are 22 stations in the Copenhagen Metro, a driverless rapid transit system serving Copenhagen, Frederiksberg and Tårnby in Denmark.  Nine of these metro stations are underground, twelve are elevated, and one is street-level.  Christianshavn Station offers transfer between the system's two metro lines (M1 and M2), which share track between Vanløse and Christianshavn stations.  From Christianshavn, M1 branches south traveling to Vestamager Station, while M2 heads southeast to Lufthavnen Station, which serves Copenhagen Airport.  Flintholm, Nørreport and Vanløse stations offer transfer to the S-train, the city's other rapid transit system which the Copenhagen Metro was built to supplement.  Transfer from the Copenhagen Metro to regional trains is possible at Lufthavnen, Nørreport and Ørestad stations.  The City Circle Line, which is under construction and scheduled to open in 2019, is planned to have 17 stations, with transfer between the current and new lines at Frederiksberg and Kongens Nytorv stations.  The new lines will have a stop at Copenhagen Central Station (København H), the largest train station in Denmark.

MGM Grand station: MGM Grand station is a station on the Las Vegas Monorail.  The station is the southern-most on the Las Vegas Monorail's route.

Central Fraser Valley Transit System: Central Fraser Valley Transit System (formerly known as ValleyMAX) is a public transit system which provides bus services in the Central Fraser Valley area of British Columbia, Canada.  Funding for the system is provided by the City of Abbotsford, the District of Mission, the University of the Fraser Valley and BC Transit, the agency responsible for planning and management of municipal transit systems throughout the province.  Other than planning and managing bus routes, The Central Fraser Valley Transit System contracts out most of its bus services to FirstCanada ULC.

Strong Republic Transit System: The Strong Republic Transit System was launched to integrate the various rail lines providing public transport in Manila in the Philippines.  The program was initiated by former president Gloria Macapagal-Arroyo on June 14, 2003.  It aimed to provide a "reliable, seamless and integrated mass transit system that would be at par with international standards" through the unification of already-existing rail infrastructure under one transit system and fare structure.  The Manila Light Rail Transit System (LRT-1 and LRT-2), the Manila Metro Rail Transit System (MRT-3) and the Philippine National Railways (PNR) Northrail and Southrail lines were covered by the SRTS project.  The project has not been mentioned by the Benigno Aquino III and Rodrigo Duterte administrations, which currently concentrates on the extensions of LRT-1 and LRT-2 and the construction of MRT-7, although his administration may continue the stalled Northrail project in a reconfigured way.

BTS Skytrain: The Bangkok Mass Transit System, commonly known as the BTS or the Skytrain (Thai: รถไฟฟ้า rtgs: "rot fai fa" ), is an elevated rapid transit system in Bangkok, Thailand.  It is operated by Bangkok Mass Transit System PCL (BTSC) under a concession granted by the Bangkok Metropolitan Administration (BMA).  The system consists of 35 stations along two lines: the Sukhumvit Line running northwards and eastwards, terminating at Mo Chit and Samrong respectively, and the Silom Line which serves Silom and Sathon Roads, the central business district of Bangkok, terminating at National Stadium and Bang Wa.  The lines interchange at Siam Station and have a combined route length of 37.6 km .  The system is formally known as the Elevated Train in Commemoration of HM the King's 6th Cycle Birthday (รถไฟฟ้าเฉลิมพระเกียรติ 6 รอบ พระชนมพรรษา ).

Las Vegas Monorail: The Las Vegas Monorail is a 3.9 mi monorail mass transit system located adjacent to the Las Vegas Strip, in Clark County, Nevada, United States.  It connects several large casinos in the unincorporated communities of Paradise and Winchester, and does not enter the City of Las Vegas.  It is owned and operated by the Las Vegas Monorail Company.  In 2013, total annual ridership was roughly 4.2 million, down from a pre-Great Recession peak of 7.9 million in 2007.  The monorail is a registered not-for-profit corporation, allowed under Nevada law since the monorail provides a public service.  The State of Nevada assisted in bond financing, but no public money was used in construction.

Johor Bahru–Singapore Rapid Transit System: The Johor Bahru–Singapore Rapid Transit System (RTS Link) is a planned rapid transit system that would connect Singapore and Johor Bahru, Malaysia, crossing the Straits of Johor.  The line is also referred to as the "Singapore-Johor Bahru Rapid Transit System", "Malaysia-Singapore Rapid Transit System", etc.  If built, it would be the second rail link between the two countries, after KTM Intercity's North-South line, and the first designed for high-volume local transit.  The first part of a preliminary engineering study was completed in March 2014, with the initial completion year targeted for 2019.  However, according to Datuk Ismail Ibrahim, CEO of the Iskandar Regional Development Authority, completion date is targeted for 2022.

Rapid transit in Canada: There are three heavy rail and three light rail rapid transit systems operating in Canada.  The Toronto subway was the first rapid transit system in Canada when it opened a 12-station line in 1954.  It has since grown to encompass three heavy rail lines and one intermediate rail line and has the most number of stations of any system in Canada with 69.  Construction has begun on the Eglinton Crosstown Line and the Toronto-York Spadina Subway Extension, which will add 28 new stations and a total of 27.6 km of new track.  Montreal introduced the Montreal Metro in 1966 and has now become the most popular rapid transit system in the country with 1,263,800 daily riders.  The Vancouver SkyTrain, an automated guided line, was opened in January 1986 for the Expo 86 world fair and is the longest rapid transit system in Canada with a system length of 79.6 km .  There are three light rail systems operating in Canada including systems in Calgary (the CTrain), Edmonton (the Edmonton LRT), and Ottawa (the O-train).  There is one light rail system under construction in Kitchener-Waterloo named Ion rapid transit.

Chicago &quot;L&quot;: The Chicago "L" (short for "elevated") is the rapid transit system serving the city of Chicago and some of its surrounding suburbs in the U.S. state of Illinois.  It is operated by the Chicago Transit Authority (CTA).  It is the fourth-largest rapid transit system in the United States in terms of total route length, at 102.8 mi long, and the second-busiest rail mass transit system in the United States, after the New York City Subway.

West Kootenay Transit System: West Kootenay Transit System (formerly known as Kootenay Boundary Transit System) is the public transit system in Trail, Casltegar, Nelson, British Columbia and surrounding area.  The transit services are operated from Trail, Castlegar, Nelson and serve Rossland, Warfield, Genelle, Montrose, Fruitvale, Salmo, Kaslo, Creston, Nakusp.  Funding is provided under a partnership between the Regional District of Kootenay Boundary, Regional District of Central Kootenay and BC Transit.  handyDART provides door-to-door transportation for people whose disability prevents them from using conventional bus service.

Supporting paragraphs: MGM Grand station Las Vegas Monorail
Answer: 3.9