James Tabor, who made the initial suggestion to study a certain area for bathroom activity at Qumran, comments on the discovery on his Jesus Dynasty blog.  He includes an aerial photo showing the location of the latrine area.  Here is another photo which also shows the area of the latrines in relation to the site.  The rocky outcropping would have provided privacy from anyone in the vicinity of the settlement.

HT: Paleojudaica