I believe the cords are close, but not close enough.
I have several maps from different years showing the changes with the area. we still have landmarks to identify positions.
The purple lines offshore indicate the helicopters location while filming.
The red lines indicate the diagonal line/road visible in several photo's, but some I had to position them (no longer there)
The brown half circle is my attempt of the north spoil.
I circled where I believe tree's still exist.
The key is where the diagonal line is. north of that is where the action was going on. the digging did not go past that diagonal line, or south of it. the 1974 photo shows the north spoil ending around the diagonal line. everything was above that point.
I believe it's possible the location is underwater. (erosion) I think the cords are off by 100+ feet to far south IMO.