They are also called geoglyphs. Artists are using GPS to capture the outlines of bike rides on maps. While my rides usually look like a barbell, I was pretty inspired the other day when one of them looked like a dog.

I think I might try to make a spiral in a field. Although I don’t have an urban grid to work with, I do have access to a large field. I also have a hard time conceiving which roads would help me form pictures, I am completely blown away by this type of work.

http://www.theatlanticcities.com/arts-and-lifestyle/2012/05/bike-paintbrush-city-canvas/1941/

geoglyphic adventures

http://www.wallygpx.com/