Readers will delight in the high-interest educational topics addressed in this book, which is aligned to the 3rd grade Common Core State Standards for English/Language Arts. Age-appropriate language, vivid imagery, and a relatable narrative will grab students' attention, keeping them engaged while also equipping them with the skills they need to become thoughtful readers. This book provides additional learning opportunities through a graphic organizer, glossary, and index. Rosen Common Core Readers can be paired with the InfoMax Common Core Readers to provide another perspective to parallel topics. Readers will follow Evan as he visits several American Indian mounds, gaining an understanding of what they are, why they were built, and who built them. This book satisfies CCSS English Language Arts Standards: RI.3.9. and L.3.1c.