A method and navigation device are disclosed which allow for switching the display of map information, depending on the current position and the availability of relatively more detailed map information. In one embodiment, the method includes receiving information of a current position and displaying map information including the current position on a navigation device; determining relative map information coverage for the current position; and switching the displayed map information to display map information of relatively more detailed coverage of the current position, upon determining that map information of relatively more detailed coverage of the current position is displayable. The method may include determining a travel route based upon a travel destination input into a navigation device and determining whether or not, based upon the current position information, travel along the route enters a region wherein the relatively more detailed map information is displayable.