River...

Trying to push out a river...

x0: 57.68,y 0: 59.35, height: 0
x1: 53.93, y1: 44.82, height: 0
x2: 42.25, y2: 54.81, height: 0
polygon(57.68% 59.35%, 53.93% 44.82%, 42.25% 54.81%)