Consider the impact of the physical and chemical properties of the parts when evaluating the whole. By Bill Langer After I retired from the U.S. Geological Survey last November, my wife, Pam, and I moved to Phoenix, Ariz. We currently live with ...
SUBSCRIBE & FOLLOW
- Controversial quarry granted permit by Indiana Department of Natural Resources440 Views
- PHOTOS: Reclamation photo contest entries showcase post-mining opportunities411 Views
- VIDEO: World conference discusses Lafarge-Holcim merger408 Views
- Loader operator dies after sand avalanche at Massachusetts sand and gravel company385 Views
- The final Waters of the U.S. rule has been released to the Federal Register371 Views