Tags: evolution of mining technology
P is for Pit A gravel pit that was a source of happy childhood memories showcases the evolution of mining technology. By Bill Langer pit, gravel noun – an open excavation from which gravel is, or has been, obtained. ‘the gravel pit whence the ...
SUBSCRIBE & FOLLOW
- Mummified human remains found at the site of a planned quarry in Indiana1155 Views
- A quarry worker was found dead in a lake a week after he fell from a floating dredge1038 Views
- MSHA rolls out new Part 50 training program564 Views
- Senate DRIVE Act is a six-year transportation bill with three-year Highway Trust Fund financing guarantee289 Views
- MSHA highlights second quarter metal/non-metal accidents254 Views