Odd Markings on a City SidewalkOctober 9, 2015

I am always fascinated by the strange markings that surveyors and city employees place on our streets and public places. They are always very cryptic and puzzling. I recently noticed these markings that I photographed below. I love the way they have no regard for grass or plants or gravel and just spray paint their glyphs on whatever happens to be there.