Name: Yosemite Valley RR
Scale: HO (1:87)
Size: 20 x 20 feet
Prototype: Yosemite Valley RR
Period: August 1939
Style: multideck along the walls with peninsula
Mainline run: 112 feet
Minimum radius: 22″ with spiral easements
Minimum turnout: no. 5, all controlled with slow-action switch motors
Maximum grade: 2.3 percent
These are not different versions but different decks of a multilevel Railroad!