Open-pit gold mine, NV.April 30, 2017/in /by Marli Miller mining, metallic, resources, https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-04-30 20:23:082017-09-04 16:04:58Open-pit gold mine, NV.