Opal is an unincorporated community in Meade County, in the U.S. state of South Dakota. [1]
Opal was laid out in 1907. [2] A post office was established at Opal in 1909. [3]
44°53′30″N102°27′02″W / 44.89167°N 102.45056°W / 44.89167; -102.45056
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