Working with layers and map contents A mapping application can
use one or more content sources. Each content item corresponds
to a service, such as an ArcGIS Server service or ArcIMS
service. Each source contains one or more map layers. A map
layer is a type of data shown on the map, such as roads, cities
or a satellite image. If the mapping application allows it, you
can view the list of the contents of the map, turn on and off
layers, and examine the symbols for layers. To examine the map
contents: - In the Console, display the Map Contents item, if
necessary, by clicking the down arrow for Contents Contents is
not present, then this mapping application does not allow
viewing the contents list. - When Map Contents opens, only the
top-level content items may be visible. Your content item(s)
will probably differ from this graphic. - Click the plus button
next to a content item to display the layers - A check-box next
to the layer indicates whether the layer is currently turned on.
These check-boxes may not be