Methods and apparatus, including computer program products, for a static and dynamic contours. A method includes rendering a contour map including static contours and dynamic contours, and displaying the contour map on a device to a user. A Global Positioning System (GPS) device includes a processor coupled with an input device, memory, and the display, and the processor linked to a GPS receiver coupled with a GPS antenna, the memory including a vector source database, a parameter source database and a contour map process to render a topographic map comprising static contour lines and dynamic contour lines.