for additional information
Cataloged maps, like books, have a call number. These maps are shelved numerically according to their call numbers in the map cases. Many maps appear on the Library's catalog. You search for a map as you would search for a book. The easiest method is to enter the geographic location (country, state, county, city, national park, region, river, etc.) i.e. "California" and the the term "maps". You will see a listing of all maps pertaining to California. However, you may want to limit your available resources. To do this you may enter a subject category with the geographical location., i.e. "California" "mines and mineral resources" "maps".
Here is a short list of some of the most commonly used subject qualifiers:
Another way to find a cataloged map is to browse through the map drawers. All cataloged maps begin with the letter designation "G". The first set of four numbers following the "G" refers to the geographic location represented on the map. General, non-specific maps will end with the digit "0" (a few end in "5") This last digit can be modified to make the map more specific.