Why It Works
This map works because it pays attention to detail in color, contrast, and layout. The marginalia hug the curves of the glaciers’ paths. The callouts deftly reveal evidence that a casual observer might otherwise miss. The map’s labels are legible, but do not visually distract from the focus on the underlying terrain. Viewers become intrigued by glacial geology, motivated to look for more drumlins, mounds, kettles, eskers, outwash channels, and fault scarps.