That is a rudist reef far in the distance...the white looking bands on top of the mountain. During the warm Cretaceous period, when dinosaurs roamed the continents, reefs were dominated not by corals, but by oddly shaped mollusks called rudists. 
Rudists dominated the Earth’s shallow tropical seas, where they built massive reefs. Here German Geologist Wolfgang Stinnesbeck
points to a rudist fossil embedded in the rock at one of the canteras.
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