The collection covers physical geography and the geosciences including structural geology, tectonics, oceanography, seismology, geochemistry, glaciology, geophysics, atmospheric science, planetary science, geomorphology, climatology, and cartography. It includes over 140,000 volumes, thousands of ebooks, more than 1,500 print and electronic journals, and over 470,000 maps and air photos issued by local, state, and federal agencies, foreign governments, international organizations, and commercial firms.