It was of Walt Disney World and the only park was the Magic Kingdom. No great detail, just block building and structures. Small scale, but showed the entire property even across I-4.
Don't know what happened to it. It might have been used for some time in the preview/visitor center near the hotels in Lake Buena Vista before opening in October 1971 and for few years afterwards. This is 1975 or early 1976. EPCOT Center didn't open until 1982.