How to use GIS? 1. Mapping Where Things Are Mapping where things
are lets you find places that have the features you are looking
for and to see where to take action. 1. Find a feature—People
use maps to see where or what an individual feature is. 2.
Finding patterns—By looking at the distribution of features on
the map instead of just an individual feature, you can see
patterns 2. Mapping Quantities People map quantities, such as
where the most and least are, to find places that meet their
criteria and take action, or to see the relationships between
places. This gives an additional level of information beyond
simply mapping the locations 3. Mapping Densities While you can
see concentrations by simply mapping the locations of features,
in areas with many features it may be difficult to see which
areas have a higher concentration than others. A density map
lets you measure the number of features using a uniform areal
unit, such as acres or square miles, so you can clearly see the
distribution. 4. Finding What'