In both of these embodiments, {TAIL ~ the reinforcing mat} has a bent up end of a height less than that of the upright portion of the face mat and an elongate body for embedment in {HEAD ~ an earthen formation} 
In both of these embodiments , { TAIL ~ the reinforcing mat } has a bent up end of a height less than that of the upright portion of the face mat and an elongate body for embedment in { HEAD ~ an earthen formation }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD