Open pit mining refers to the extraction of minerals and ores in areas that are close to the surface of the earth. While, underground mining entails digging down to the mineral deposits after stripping off the overlying soil and rocks. Some of the methods used are open pit mining, strip mining and mountaintop mining which are specialized based on the kind of deposit and the geographical location.
Prestige Paving & Concrete Services
Barbee Stout
Berry Marshall
Short Egholm
Donnelly Cash
Ray Nash
Byskov Krause
Vua88
Davisjames
Kamper Robbins