Careful planning is required to develop a mine. Mining companies use special techniques to make sure they can safely remove as much material as possible from a mine. This book explores the methods that mining companies use to extract materials at the surface, deep underground, and underwater. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.