![The Walker Mine, Plumas County - Region 5 Success Stories | Central Valley Water Quality Control Board The Walker Mine, Plumas County - Region 5 Success Stories | Central Valley Water Quality Control Board](https://www.waterboards.ca.gov/centralvalley/images/mining_images/walker/walker_img4.jpg)
The Walker Mine, Plumas County - Region 5 Success Stories | Central Valley Water Quality Control Board
![Mines of Plumas County, California: Bureau, California State Mining, Jackson, Kerby: 9781497529496: Amazon.com: Books Mines of Plumas County, California: Bureau, California State Mining, Jackson, Kerby: 9781497529496: Amazon.com: Books](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/715wa+ZeOoL._AC_UF1000,1000_QL80_.jpg)
Mines of Plumas County, California: Bureau, California State Mining, Jackson, Kerby: 9781497529496: Amazon.com: Books
![Mines and Mineral Resources of Plumas County (Classic Reprint): Errol Mac Boyle: 9780266251361: Amazon.com: Books Mines and Mineral Resources of Plumas County (Classic Reprint): Errol Mac Boyle: 9780266251361: Amazon.com: Books](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51bmK4RUKxL._AC_UF1000,1000_QL80_.jpg)
Mines and Mineral Resources of Plumas County (Classic Reprint): Errol Mac Boyle: 9780266251361: Amazon.com: Books
![The Walker Mine, Plumas County - Region 5 Success Stories | Central Valley Water Quality Control Board The Walker Mine, Plumas County - Region 5 Success Stories | Central Valley Water Quality Control Board](https://www.waterboards.ca.gov/centralvalley/images/mining_images/walker/walker_img1.jpg)