The Emerald Grotto, Shannon County, Missouri
Photo by Jay Wilbur
NABSQNO 15S-644267-4135874. The Emerald Grotto is a meander natural bridge eroded through limestone by Sinking Creek. It is located about 19 miles north of Eminence, Missouri. The Emerald Grotto, also known as The Sinks, appears in the Vreeland catalog as number 14-25, and in the second edition of the Beveridge catalog as number 308. Vreeland reports a span of 15 feet.