By John Dunham

Dome 12 is a sinkhole on the Northeastern Cave Conservancy’s Merlins Cave Preserve and has been a Spring and Fall dig since 2016. Working after a sinkhole washout, the Berkshire Area Diggers Association has been excavating rocks and gravel in search of a way into presumed passage downstream of the main Merlins Cave, which has a few thousand feet of nice marble passages. With some stabilizing, creative engineering, and persistence, the crew got into some passage in Dome 12 at the end of 2019, which has ongoing digs in two downstream directions.

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