This book introduces readers to a mysterious waterfall in Minnesota and how this natural phenomenon came to be. Features include a table of contents, fun facts, infographics, Making Connections questions, a glossary, and an index. QR Codes in the book give readers access to book-specific resources to further their learning. Aligned to Common Core Standards and correlated to state standards. DiscoverRoo is an imprint of Pop!, a division of ABDO.