Question: Yuma is an Amtrak station with passenger rail service provided thrice-weekly by a train that for most of its history has run between what two cities?
Context: Yuma is an Amtrak station at 281 South Gila Street in Yuma, Arizona, United States.  Passenger rail service is provided thrice-weekly in each direction by the "Sunset Limited" and the "Texas Eagle" over this portion of its route.  The station's island platform, which is adjacent to the station building site, are accessible through a short pedestrian tunnel. Buenavista Station is a passenger rail station in Mexico City.  The station provided intercity passenger rail service until those services were discontinued by Ferrocarriles Nacionales de México in 1997.  In June 2008, the station was reopened to serve as the terminus of the newly inaugurated commuter rail service, the Suburban Railway of the Valley of Mexico Metropolitan Area. Orlando Health/Amtrak station, also known as Orlando station, is a train station in Orlando, Florida.  It is served by Amtrak, the national railroad passenger system of the United States, and SunRail, the commuter rail service of Greater Orlando, as well as local and intercity buses.  It serves Amtrak's "Silver Meteor" and "Silver Star" lines.  Built in 1926, the historic station is located approximately one mile south of Downtown Orlando near the campus of Orlando Health.  Serving 160,442 passengers at last measure in 2013, The station is Amtrak's fifth busiest in the Southeastern United States; it is the second busiest Amtrak station in Florida, behind the Sanford station of the Auto Train. Maricopa is an Amtrak train station at 19427 North John Wayne Parkway in Maricopa, Arizona in Pinal County, Arizona, United States.  Passenger rail service is provided thrice-weekly in each direction by the "Sunset Limited" and "Texas Eagle".  Maricopa was added as a stop after Amtrak was forced to withdraw from Union Station in Phoenix due to deteriorated track conditions on a secondary Union Pacific Railroad line which diverged from the mainline to serve Phoenix. Canadian Pacific's Galt Subdivision is Canadian Pacific's 114.6 mile long section of its Montréal-Detroit freight corridor.  It is located in Southern Ontario, Canada.  Getting its name from the historic City of Galt (now the City of Cambridge) that it passes through, the track runs from the bustling hub of Toronto, Ontario, to London, Ontario.  GO Transit's Milton GO train service operates on this line from Toronto Union Station to Milton GO station.  The rest of the line plays host to mixed freight and intermodal traffic, from Toronto to termini like Detroit, and Chicago.  This Central Ontario line also had CP passenger rail service till 1971 when it was eliminated.  Passenger rail service would be partly restored halfway through the line through the introduction of GO Transit operations in 1981 westward only as far as the Town of Milton. The Sunset Limited is a passenger train that for most of its history has run between New Orleans and Los Angeles, over the nation's second transcontinental route. Clemson is a train station in Clemson, South Carolina.  It is served by the "Crescent" passenger train of Amtrak, the national passenger rail service.  The station sits on the corner of Calhoun Memorial Highway and College Avenue in the heart of downtown Clemson.  Clemson is situated on one of the nation's emerging high-speed rail corridors, known as the Southeast High Speed Rail Corridor or SEHSR. Sanford station is a SunRail commuter rail station in Sanford, Florida.  It is the penultimate station in SunRail's phase one.  It opened May 1, 2014, and marks the nine-year return of regular passenger rail service to Sanford, Florida following the closure of the Amtrak station in 2005.  Sanford station is the northernmost SunRail station within Seminole County, Florida. The Twilight Limited was a named passenger train in the United States which initially operated between Chicago, Illinois, and Detroit, Michigan.  The New York Central Railroad introduced the train in 1926, and it continued until the formation of Amtrak (the National Railroad Passenger Corporation) in 1971, although it lost its name in 1967.  Amtrak renamed the train "St. Clair", feeling that the name "Twilight Limited" had undesirable connotations and imagery for a company trying to save passenger rail service.  Amtrak revived the name in 1976 for a new train frequency on the Chicago–Detroit corridor, and kept the name until all trains on that corridor were renamed "Wolverine" in 2004. Pomona or Downtown Pomona is a train station in Pomona, California, United States, served by Amtrak intercity rail and Metrolink commuter rail.  Amtrak serves the Pomona station with thrice-weekly service provided by the "Sunset Limited" and "Texas Eagle" combined service; Metrolink's Riverside Line runs a commute schedule to and from Los Angeles on weekdays.
Answer: New Orleans and Los Angeles