Submitted By: Imp
The Golden Horseshoe is in one of the original buildings from 1955 in Disneyland. and yes, Walt ate there!
However, we are not sure when this Hidden Mickey first appeared.
Walk toward the front of the stage at The Golden Horseshoe Disneyland and find a vent grate in the center of the lower front wall.
Start at the lower right hole in the grate, and look up and left diagonally one hole to find a classic Hidden Mickey in the grate.
Steve is the author of the Hidden Mickeys Guide Books To Walt Disney World, Disneyland, and At Sea.