| Call number | Item |
| G | Geography, Anthropology, Folklore, Recreation (Go to start of category) |
| G-GB | Geography (General and Physical) (Go to start of category) |
| GB | Physical Geography (Go to start of category) |
| GB496 .W5 G22 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) The Elevations of Certain Datum-Points on the Great Lakes and Rivers and in the Rocky Mountains, by James T. Gardiner (page images at MOA) |
| GB501.2 W675 1991 | Workshop on Mountain Belts on Venus and Earth: San Juan Capistrano, California, January 13-15, 1992 (program and abstracts volume; Houston: Lunar and Planetary Institute, 1991) (PDF at USRA Houston Repository) |
| GB511 .V3 | The Mountain: Renewed Studies in Impressions and Appearances, by John C. Van Dyke (HTML at LOC) |
| GB571 .L47 | On the Origin and Formation of Prairies (extract from the American Journal of Science and Arts, 1865), by Leo Lesquereux (page images at HathiTrust) |
| GB592 .A45 1996 | Alluvial Fan Flooding (1996), by National Research Council Water Science and Technology Board (page images with commentary at NAP) |
| GB601 .A1 I5 | International Journal of Speleology (most issues 1964-) (partial serial archives) |
| GB601 .N36 | Journal of Cave and Karst Studies (issues online 1996-) (partial serial archives) |
| GB611 .I518 1979 | Social and Environmental Aspects of Desertification (Tokyo: United Nations University Press, c1980), ed. by J. A. Mabbutt and Andrew W. Wilson (HTML at UNU) |
| GB611 .W27 | Deserts: Geology and Resources, by A. S. Walker (illustrated HTML at USGS) |
| GB612 .P47 1980 | Perception of Desertification (Tokyo: United Nations University Press, c1980), ed. by R. L. Heathcote (illustrated HTML at UNU) |
| GB618.3 .S77 1980 | Strategies for Improved Management of Latin American Drylands (Tokyo: United Nations University Press, c1980), ed. by J. A. Mabbutt, H. J. Schneider, and R. Nava (HTML at UNU) |
| GB618.88 .A354 G73 1996 | Grassroots Indicators for Desertification: Experience and Perspectives from Eastern and Southern Africa, ed. by Helen Hambly and Tobias Onweng Angura (PDF and HTML with commentary at idrc.ca) |
| GB661 .L5 | Applied Hydrology (New York et al.: McGraw-Hill Book Co., 1949), by Ray K. Linsley, Max Adam Kohler, and Joseph L. H. Paulhus (page images at HathiTrust) |
| GB661 .S2 | New Water for a Thirsty World (Los Angeles: Science Foundation Press, c1960), by Michael H. Salzman, contrib. by Aldous Huxley (page images at HathiTrust) |
| GB701 .P74 1991 | Preparing for the Twenty-First Century: A Report to the USGS Water Resources Division, by National Research Council Commission on Engineering and Technical Systems (page images with commentary at NAP) |
| GB705 .P4 B3 | Water Resources of the Philadelphia District (Washington: GPO, 1904), by F. Bascom |
| GB840 .F67 | Forests, Climate, and Hydrology: Regional Impacts (Tokyo: United Nations University Press, c1988), ed. by Evan R. C. Reynolds and Frank B. Thompson (HTML at UNU) |
| GB991.N6 W28 2001 | Water, Watersheds, and Land Use in New Mexico: Impacts of Population Growth on Natural Resources, Santa Fe Region 2001, ed. by Peggy S. Johnson (PDF at nmt.edu) |
| GB1203 .H3 | Flood Flows: A Study of Frequencies and Magnitudes (New York: J. Wiley and Sons; London: Chapman and Hall, 1930), by Allen Hazen (page images at HathiTrust) |
| GB1363 .W6 | The Nile in 1904 (London: E. and F. N. Spon; New York: Spon and Chamberlain, 1904), by William Willcocks, contrib. by H. J. L. Beadnell |
| GB1399.4 .H3 N49 1991 | The New Year's Eve Flood on Oahu, Hawaii, December 31, 1987 - January 1, 1988 (Washington: National Academy Press, 1991), by John A. Dracup, Edmond Cheng, Joanne M. Nigg, and Thomas A. Schroeder (page images with commentary at NAP) |
| GB1817 | Classification of Natural Ponds and Lakes in the Glaciated Prairie Region (resource publication #92; Washington: Bureau of Sport Fisheries and Wildlife, 1961), by Robert E. Stewart and Harold A. Kantrud (PDF with commentary at usgs.gov) |
| GB2401 .J68 | Journal of Glaciology (partial serial archives) |
| GB2405 .B3 | The Physics and Mechanics of Snow as a Material (Hanover, NH: US Army Cold Regions Research and Engineering Laboratory, 1962), by Henri Bader, contrib. by Daisuke Kuroiwa (page images at HathiTrust) |
| GB2596.5 .D36 2004 | Frozen Annals: Greenland Ice Sheet Research (2004), by Willi Dansgaard (PDF with commentary in Denmark) |