There are few places on the earth's surface which, within such a limited area, combine so many of the requisite elements for chartographic delineation as are met with in Scotland. With mountains rising almost to the limit of the snow-line, and an extensive seaboard, broken up by firths and lochs into every conceivable form of promontory, cape, and headland, this portion of Great Britain comprises within itself such a variety of physical features as is only found elsewhere distributed over much more extensive regions.