1887, that indications of old placer mines existed here, the waters of Rocky Bayou and. Bayou Darro being used for washing. Indeed, Mr. Cameron round what he termed. gold, but the discovery was ridiculed until April, 1887, when Claussen & Lynch, assayers, of New Orleans, showed $ 19.80 in silver and $ 179.84 in gold per ton of sand. In 1830. More @Wikipedia
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