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In page Noble, Oklahoma:

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Noble considers itself to be the "Rose Rock Capital of the World", as the concentration of barium sulfate in the soil is believed to be higher there than anywhere else,[citation needed] causing the formation of rose rocks. Similar formations are found throughout Cleveland County and the Wichita and Ouachita Mountains. Noble sets aside the first Saturday each May to celebrate its annual Rose Rock Festival. Local geologist Joe Stine and his wife opened the Timberlake Rose Rock Museum in 1986 and closed it in 2019.