Landscape Maps Colourized by GPS’ed Flickr Photos
I won’t attempt to summarize how this map was made:

Just go read the post about its making:
Flickr As A Paintbrush — cartogrammar blog
And incidentally, the guy who made that map is also helping make these fascinating things. My inner cartographer is freaking out.
you’re inner cartographer might relate to, or even wanna be pen pals with T.S. Spivet of the novel ‘the selected works of T.S. Spivet’ (by reif larson) a novel which i creamed my jeans over — do to it’s fantabious maps.