Meeting Challenges with Geologic Maps

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The first geologic map was prepared to solve a practical problem involving the distribution of different types of rocks at and near the Earth’s surface, and that is still the reason geologic maps are made today. Geologic maps are our most important and complete compilation of information about the solid Earth we live on, and we cannot understand the Earth without them. We use geologic maps and the fundamental information they provide in many ways. Meeting Challenges with Geologic Maps presents 16 examples that show how geologic maps are helping to delineate fragile habitat and ecosystems, protect against natural hazards (earthquakes, volcanic eruptions, landslides, and sinkholes), and find needed resources (groundwater, metals, coal, and sand and gravel). 

Document Type: 

  • Report


  • critical issues, database publication, data, hazards, mineral resources, water, natural resources, united states