Trench Warfare?

No, I'm not trying to recreate WWI, I've been moving earth (and stones!) to get a level for building the next wall. I need to build a low wall parallel to the barn to form the 4th side of our courtyard. This last wall will give us the finished level so that I can see how much of the heap of stones we'll be able to lose in it. (Or how much more we'll need to move into it). I hadn't realised how much earth would be thrown up in digging out these foundations.

As you can see it's been hot today, not an ideal day for digging out trenches