The Map area is the focal point of the Flood Zone Application and where you can get your questions about flood facilities and features in Clark County answered. As you perform queries using the Query area, or identify features using the Identification area, the map will update to display the information that you requested.

Internally, the map is comprised of many layers, which are representations of the data that relate to a particular feature. For example, the parcel layer contains all of the information necessary to display a particular parcel of land on the map at a specific position. A layer is see-through, like a sheet of onion paper, so that anything displayed "beneath" the layer will show through. These layers are laid on top of one another and, all together, make up the map. The following example describes how this works.

	Channel Layer	Street Layer	Basin Layer
The three layers, when combined, create a map containing all of the information from each layer.

Displaying many layers at one time may become confusing as the data on the layers overlap each other. If there is too much information displayed on the map, or if certain features are being identified that you don't want to display, you may want to try using a different View. Information about the different view settings is available in the Views section of this help file.

Once the map is displayed, you can use the Navigational tools, Identification buttons, and Query buttons to interact with the map and answer questions regarding flood facilities and features.