Las Vegas Sun

March 29, 2024

Teacher Cheri Petroni looks over the PABCO Gypsum mine near Lake Mead during an earth science workshop for teachers Wednesday, April 4, 2012. The workshops are sponsored by the Nevada Mining Association and the Nevada Division of Minerals.

Steve Marcus

Teacher Cheri Petroni looks over the PABCO Gypsum mine near Lake Mead during an earth science workshop for teachers Wednesday, April 4, 2012. The workshops are sponsored by the Nevada Mining Association and the Nevada Division of Minerals.