Ordnance Survey is now giving away a selection of free, downloadable, basic small-scale maps of Great Britain for you to use for your own purpose. GB outlines with and without administrative boundaries are available in EPS, TIF, PDF and GIF format. Online Map Creation You may create maps interactively at this site. Fill out the form, submit your entries and a page with the desired map will be returned to your browser. The USGS has a sizable collection of public domain map and geologic symbols and patterns.
Population is a small collection of cartography symbols.
Great for making maps or use them as unusual bullets in your document. Avenza Software has a Parks Font containing the symbols and pictographs that are used in the creation of National Parks Service maps for both Mac and PC free to download.