The map on the Territory page provides a shortcut to filter for your farm contacts under the Contacts page. For multiple territories, the map view provides a visual aid in comparing and contrasting overall performance.
You can zoom in and zoom out to get street-level data and you also have the ability to drag the human avatar to get a Google street view to further familiarize yourself with the area.
This is especially helpful if you plan to door knock or set up open house signs in the area!