This Concise Hornbook is a comprehensive, user-friendly review of the full range of important natural resources law issues. It surveys cases, statutes, regulations, legal developments, and policies that have shaped, and will continue to influence, natural resources law throughout the 20th century and the early 21st century. Topics include resource economics, jurisdictional and litigation constraints, the National Environment Policy Act (NEPA), public lands, wildlife, preservation, recreation, rangeland, timber, mining, and energy.