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(Treasure Island Gift Shop, 30', 1968, 21-01-(a) across a brook in East of Hyannis, Yarmouth Township, Barnstable County, MA. On the north side of SR28. This is connected to the building as an entrance. It may still be there, but might be filled in underneath now. () Photo by Richard Donovan 9-4-70, submitted by Dan Brock.