Wikipedia:Reference desk/Archives/Miscellaneous/2022 October 9

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October 9

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Looking for sources for information

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Good afternoon, all. Looking for sources for this information: "In the Rhodope Mountains, an underground cavity was discovered at a depth of 2,400 meters during drilling." Does anyone know where the information is from? Thank you in advance. Vyacheslav84 (talk) 16:32, 9 October 2022 (UTC)[reply]

For what it's worth, this sentence (when googled) shows up in several Russian tourist/travel-type websites, which is presumably where the OP found it. The obvious first step would be for the OP (or another Russian-speaking editor) to contact those websites and ask them. {The poster formerly known as 87.81.230.195} 90.195.172.49 (talk) 16:57, 10 October 2022 (UTC)[reply]