JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Zoom The Zoom controls allow you to control the magnification of the map display. The following zoom controls are available: Zoom In Select this icon to increase map magnification. Zoom Out Select this icon to decrease map magnification. Zoom to Extent When selected, you can drag over an area of the map to increase the magnification. Zoom to Default Extent When selected, the map zoom resets to its default magnification. Note: You can use the mouse wheel to zoom in and out. Parent topic: Map Navigation