Base Maps and Cartography (PDF)
The Fourth Dimension – Chronology (PDF)
2-D Presentation of 3-D Geology (PDF)
USGS Map Example # 1: Global Geology (Map) (PDF)and Global Geology (Pamphlet) (PDF)
USGS Map Example # 2: Northern Plains (Map) (PDF) and Northern Plains (Pamphlet) (PDF)
USGS Map Example # 3: Candor Chasma (Map) (PDF)