Hey,
Please need some help, any thoughts and advice, brutal honesty is encouraged
Classic case of accidental discovery; contractor company excavating a canal up in a mountainous area, by some friends of mine in central iloilo, suddely encountered a very hard portion which could not be broken, coincidentally directly underneath a very very old Tugas (molave) tree, one of the local favorite tree species.
whether it's natural or man-made, that is the question.
Some of the broken Stone (cement?) can be seen on the pile of soil which was pulled off the surface, along with the stump of the century+ old tree.
You can see the canal as it has been dug and laid, this is quite literally the only portion up the whole mountain where this peculiarly hard area was found.