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Since 2017, DA Smith has completed multiple roof coring campaigns at four Lehigh Hanson underground limestone mines, including the Rich Hill, Springfield Pike, and Torrance mines located in southwestern Pennsylvania. Roof holes were drilled from a 30-foot scissor lift using DA Smith’s lightweight LA-100 aluminum-framed, electric-hydraulic drill rig. Excellent core recovery was achieved.
In December 2022, DA Smith successfully completed another roof coring campaign at a confidential operation in Pennsylvania.
DA Smith completed the most recent coring campaign at the Rich Hill, Springfield Pike, and Torrance mines in January 2024.