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100 feet above it.  The coarser layers (of which one was conspicuous [[strikethrough]] ) [[/strikethrough]] and about two feet thick) are composed of pebbles a part of which appear quite white, as of a weathered clay rock, and the rest of that altered schistose material so common in the coast ranges.  In a few places, coarse decomposed granitic rock resembling that at Monterey shewed itself and the upper part of several of the hills, as far as could be decided from a distant view, was composed of the crumpled and altered schists.  No unaltered stratified rock nor anything resembling fossiliferous beds, was observed along the line.

As the road approaches the head of the valley at the Rancho Santa Margarita the land becomes more rolling.