PGSS sign for VALLEY

VALLEY
Hold 1st hand as GROUND, and hold 2nd 1st finger hand, back upward and 1st finger pointing forward-inward, with its 1st finger one hand's length above centre of 1st forearm; then with 2nd hand trace vertical downwards-forward-outwards semicircle touching 1st arm near its wrist and finishing movement with its 1st finger one hand's length above lower knuckles of fingers of 1st hand.
[Compare DELL] [Opposite of HILL]