Gravel quarry, CA.April 30, 2017/in Groundwater/by Marli Miller mining, open-pit, groundwater. 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 20:23:402017-09-25 20:16:14Gravel quarry, CA.
