Throughout history, people have always explored new frontiers. Adventure, fame, and scientific discovery have all driven humans to forge into the unknown. This title examines the exploration of mountains. Easy-to-read, engaging text takes readers to Everest and other world-famous mountains, examines the explorers who journeyed to Earth's highest peaks, and traces the development of the technology and techniques that made this exploration possible. Well-placed sidebars, vivid photos, helpful maps, and a glossary enhance readers' understanding of the topic. Additional features include a table of contents, a selected bibliography, source notes, and an index, plus a timeline and essential facts. Aligned to Common Core Standards and correlated to state standards. Essential Library is an imprint of Abdo Publishing, a division of ABDO.