In this shot we can clearly see the ribbed sole prints around the footpad of the LM. - I wonder who drew the "triangle" in the dust in the foreground - just in front of the LM footpad??? Was this a marker for the placement of the "LM prop", it sure is a very "geometicrally perfect" shape to find by chance on the Lunar surface - and even more incredible to think that it would still be there after the blast from the descent motor !!