| GA | Cartography |
| GA109 | | | Aerial Cartography |
| GA109.5 | | | Cadastral Mapping |
| GA109.8 | | | Statistical Mapping |
| GA110 | to | GA115 | Map Projections |
| GA125 | to | GA155 | Map Drawing, Printing |
| GA192 | to | GA197.3 | Map Collections, Libraries |
| GA260 | to | GA288 | Globe Making |
| GA300 | to | GA325 | World Maps, General Atlases |
| GA341 | to | GA1776 | Cartography by Country & Region |
| GB | Physical Geography |
| GB400 | to | GB649 | Geomorphology, Landforms |
| GB651 | to | GB2998 | Hydrology, Water |
| GB5000 | to | GB5030 | Natural Diasters |
| GC | Oceanography |
| GC63 | to | GC78 | Oceanographic Expeditions, Underwater Exploration |
| GC96 | to | GC97.8 | Estuarine Oceanography |
| GC100 | to | GC103 | Seawater |
| GC109 | to | GC181 | Chemical/Physical Oceanography |
| GC190 | to | GC190.5 | Ocean-Atmosphere Interaction |
| GC200 | to | GC376 | Dynamics of the Ocean |
| GC377 | to | GC399 | Marine Sediments |
| GC401 | to | GC881 | Oceanography by Region |
| GC1000 | to | GC1023 | Marine Resources |
| GC1080 | to | GC1581 | Marine Pollution |
| GF51 | to | GF895 | Human Ecology, Anthropogeography |
| GN49 | to | GN875 | Anthropology |
| GR72 | to | GR940 | Folklore |
| GV181 | to | GV1860 | Recreation |