A More Interesting Way to Produce Inventory Maps?

This guy must've looked like a complete nut. If he'd done this on our campus, surely he'd have had security called on him more than twice.

But check it out. He produced a really cool map of the University of Warwick by walking 238 miles over a period of 17 days on the campus in a systematic way while holding a handheld GPS device.

And he didn't forget to label his drawing. Pretty amazing.