Using scanned maps and data from the United States Geological Survey (USGS), Esri developed an interactive tool to explore ...

A topographic map introduces you to the peaks and valleys ... “Sometimes, even software updates can zap your saved maps,” he told us. “Plus, a printed map doesn’t need batteries.” ...

THE practical problems involved in the interpretation of geological and topographical maps are here dealt with in a manner likely to appeal to students of geology and civil engineering.