There are times when the best map for a specific area or event is a printed map. Custom maps allow you to scan an image, such as a paper map, and convert it to a KMZ file to be placed on your compatible GPS. When scanning an image, you will want to use a specific resolution depending on the device.
The below list will show the device and the recommended resolution.
Once the image is scanned at the correct resolution, then be sure to save it as a JPEG. View the Custom Maps webpage for step-by-step instructions.
*dots per inch