... upon the abrupt edge of a gigantic sunken landscape of the wildest, most multitudinous features, and those features, sharp and angular, are made out of flat beds of limestone and sandstone forming a spiry, jagged, gloriously colored mountain-range countersunk in a level gray plain. It is a hard job to sketch it even in scrawniest outline; and try as I may, not in the least sparing myself, I cannot tell the hundredth part of the wonders of its features—the side-canons, gorges, alcoves, cloisters, and amphitheaters of ... — The Grand Canon of the Colorado • John Muir
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