Hi-rez, open-licensed recreation of the 1968 Disneyland souvenir map

Boing Boing reader Pink Frankenstein is behind this stunning, high-resolution recreation of the 1968 Disneyland souvenir map, which he's generously licensed CC 0 (there's also a 700 DPI, 3.5GB Photoshop master file). Pink Frankenstein adds, "Any idea who the original artist is?"