Notes:

Physical Description - Geographic Coverage:

The number of sheets required to provide complete geographic coverage for the area being mapped is given in a note if it is known or can easily be determined. Example:

However, if the information is included in the title statement, a geographic coverage note is not constructed. Example:

Or, if the physical description is closed (i.e., the specific material designation is preceded by a number) and the geographic coverage is identical to the extent of item in the physical description. Example:

Note that the emphasis in this note is on geographic coverage. The bibliographic description for a map series/set that requires six sheets to cover an area and includes separate sheet for three different subjects for each geographic segment of the area covered would contain a geographic coverage note. Example:

Even if the physical description is closed the note is still necessary because the number of sheets required to provide geographic coverage is different from the number of maps in the physical description. Example: