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After reading 1774 websites, we found 1 different results for "What year was The Great Mouse Detective released"
1986
In 1985, during production of The Great Mouse Detective (released in 1986), Disney's Animation Department was moved off the Burbank lot into a cluster of old hangars, warehouses, and trailers located about two miles east (3.2 km) in Glendale, at the former site of the Grand Central Airport.
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