I call those the S shaped arms! (I also sometime nick name them as "SHOWWOWS" anyway this is really cool one here...pretty LARGE! I know there's some groups of those types found at the boarder of Canada and USA...and the road lining up the USA side has flat bottom silverliners!
Hey Niall can you get me one of these, I could use one on my shed
watch the cars on the 401 swerving behind me
Also the street view did a better job it showed HOW LOW to the ground it was!!!