You can also:
You can also use advanced library search to find maps.
Include keywords for both the geographic region and the type of map (e.g. topographic map, geologic map, road map) you need.
Map scales are usually given in the catalog as a representative fraction, such as 1:100,000 (see map scale). A map series for a larger area may include the area you are interested in; so be sure to check for maps of larger areas such as countries or continents.