Sinkholes in the Black Hills

On Thursday, May 7th, at 7:00pm mountain standard time, the Paha Sapa Grotto will be hosting an online presentation titled “Identification of Sink Holes” by Karl Emanuel.

Karl is a longtime professional geologist who has done extensive research on sinkholes in the Black Hills. He will be presenting on both his research and the recent sinkhole collapse in the Blackhawk community. The presentation is free and open to the public and will be streamed via zoom and Facebook live. To view, visit https://www.pahasapagrotto.org/meetings.html