The Disneyland Monorail was the first operating monorail system in the Western Hemisphere and the first to cross a public street. When Walt built Disneyland, he wanted complete control over the steam trains, so that he could take them out when ever he wanted. Thus, he placed the steam trains, and then later the monorails under the ownership of Retlaw and leased them back to the park. In 1982, the family decided to sell the assets of Retlaw to the Disney Company, and a holding company, Walt Disney Incorporated was formed. Eventually, the steam trains and monorails became "officially" Disneyland's property.
The trip from Tomorrowland to the Disneyland Hotel is more level and has more straight-aways, drivers can run the Monorail at full speed, 35 miles per hour. The return trip, though, has several curves and a seven-degree grade near the Submarine Lagoon, so drivers are instructed to maintain a speed of fifteen miles per hour.
Initial cost to build the monorail was $1.4 million (in 2003 dollars it would be over $8.5 million)
The monorail designer was Alweg which are the initials of the owner of the company: Axel L. Wenner-Gren
Clip and info of Disneyland's Monorail courtesy of DLDHistory.com