This inquiry leads students through an investigation of maps, the common characteristics of maps, and the stories maps can tell about a place. By investigating the compelling question, “What is the most important information a map can tell us?,” students evaluate a set of maps with a focus on the Korean Peninsula as a case study. The formative performance tasks build on knowledge and skills through the course of the inquiry, help students deepen their understanding of maps and their value as a tool for understanding the world, and build content knowledge about the Korean Peninsula. Using the map set provided, students create an evidence-based argument about the most important piece of information they learned.