synclinal mountain formation

geology nature formation landscape rock syncline geological mountain travel stone strata texture ancient layers natural beautiful earth sedimentary scenic formations amazing faulting folds geologic layer science tectonic tourist erosion structure folding view environment landmark panoramic history 350 million years allegheny mountains appalachian interstate 68 maryland metamorphic sideling hill washington county agios pavlos beach crete extreme fold grass orogenic face rocks stratified cliff anticline limestone surface faults geosynclines green detail slate compression