One of the United States' greatest treasures is its wide range of national parks. Visitors can travel from coast to coast discovering the country's protected lands. Iconic National Parks explores several of these fascinating places, introducing readers to some of America's most famous parks. Core Library is the must-have line of nonfiction books for supporting the Common Core State Standards for grades 4-8. Core Library Features: A wide variety of high-interest topics, Well-researched, clearly written informational text, Primary sources with accompanying questions, Multiple prompts and activities for writing, reading, and critical thinking, Charts, graphs, diagrams, timelines, and maps.