Which monorail used to begin the monorail that is a 3.9 mile long monorail mass transit system?
Mark IV monorail The Mark IV monorail was a design model of straddle-type monorail trains. The design was developed by legendary Disney Imagineer Bob Gurr. Ten trains were built by Martin Marietta in 1969 at the cost of about $7 million USD each and they were used on the Walt Disney World Monorail System between 1971 and 1989 before they were replaced by the Mark VI monorail, although a few lasted until 1991. Sometime between 1991 and 1994 Monorail Coral and Lime (which had been introduced new in 1984) were sold for $3.5 million each, refurbished, and used to begin the Las Vegas Monorail operations. In 2004 Lime and Coral (now the MGM and Bally) were replaced by fully automated Bombardier MVI 4-car trains.
Illinois Zephyr The Illinois Zephyr, running since 1971, is a 258-mile (415 km) passenger train operated by Amtrak, that runs between Chicago and Quincy, Illinois. The train is a part of the "Illinois Service" rail network and is partially funded by the Illinois Department of Transportation. Between Chicago and Galesburg, Illinois, this train service uses the same double track (BNSF, old CB&Q) as three other Amtrak routes: the "California Zephyr", the "Southwest Chief", and the "Carl Sandburg". The Galesburg to Quincy route (old CB&Q Quincy/Hannibal branch) is only served by the "Illinois Zephyr" and the "Carl Sandburg". The "Illinois Zephyr" is the "longest continuously operated state-sponsored train."