Terry wrote:
I suspect the holes are abandoned oil wells from long ago. Nothing left
but the damage from bringing up the "substrate" to the surface.
Limestone, oil soaked earth etc that no plant can grow in or at least is
favorable to the local vegetation.

That whole area around Galveston is riddled with those holes. I
understand years ago that area had hundreds of oil wells in a few block
area.

Thats my guess!

Terry




I disagree. I suspect that the "pilot" at the controls of the UFO that
did this was a student and was practicing "touch and go's". :-)