Extraordinary environments endure through the efforts of conservationists such as Sigurd Olson. In this engaging biography, readers will learn about Olson’s birth in Chicago, Illinois, his childhood in Wisconsin, and his later life in Minnesota. Readers will discover Olson’s early years as a wilderness guide in the international boundary area of the United States and Canada known as Quetico-Superior and his work to keep development out of the area, leading to the establishment of the Superior Roadless Areas which would later become the Boundary Waters Canoe Area Wilderness. Olson’s work on the National Parks Association and Wilderness Society are examined, as is his influence in drafting the Wilderness Act. Olson’s work in creating the Alaska Arctic Wildlife Refuge, California’s Point Reyes National Seashore, and Minnesota’s Voyageurs National Park are also included. Olson later spent his days experiencing and writing about nature. In turn, he has inspired generations of green pioneers. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.