Ariel view after second course.  Note that the system they are using is the forklift to deliver the block from the outside, and the skid steer is lifting the mortar mix up so that they can get to it easily.

Ariel view after second course.  Note that the system they are using is the forklift to deliver the block from the outside, and the skid steer is lifting the mortar mix up so that they can get to it easily. (Javier Figueroa)