The weekend before Walt and Co. pitched the park to all the major television networks (ABC, of course, wound up biting), he and friend/artist Herb Ryman holed up for the weekend as Ryman translated Disney's ideas into a physical map of the park.
Disneyland Park, California opened in 1955 and was the only Disney theme park built under the direct supervision of the animator himself.
The two artists created the map over the space of a weekend in September 1953 so that Walt's brother, Roy Disney could present the concept to potential backers in NY.
This is only the second time the Disneyland map has been sold.
The map wasn't the only Disney collectible auctioned off this weekend.
After the theme park's construction, the map hung in Disney's office until a production assistant, Grenade Curran, asked if he could take it home.
Someone obviously does, because an original map of the first Disneyland park has just sold for over £550,000 at auction in California. Disney memorabilia collector Ron Clark, the map's previous owner, bought it from Curran 40 years ago.
Almost 1,000 other Disneyland artefact - including original props, wardrobe, ride vehicles, and souvenirs - from 1953 to the present were also auctioned.