Within the frame of this photograph, the subtle changes of local topography are revealed. At upper right, one can still see the green grass of back yards and the aqua of several swimming pools. The dark blue green color that follows the street grid indicates flood waters. In the vast area to the left - not a lake but an inundated golf course - the light reflects off the rippling surface of the water. There, the depth exceeded six feet; a few patches of grass indicate elevated tees and greens.