1. A mobile geographic information system comprising: a database containing geographic information including information related to a set of geographic features or a single geographic feature, the database accessible via a network connection; and a mobile device connectable to the database from a remote location, the mobile device having a controller and a position sensor for determining a first location and an orientation sensor for determining a first direction, the first location and the first direction defining a polygon usable for selecting a unique geographic feature from the set of geographic features, wherein the controller is adapted to retrieve the geographic information from the database based upon a predetermined coincidence of the polygon and a geographic feature, the database further adapted to employ a first filter including means for determining whether a user can point at a geographic feature within the set of geographic features.