Checkerboard Mesa Sign, Zion National Park, 1950s

Archive & AtlasEstablished · MMXXIII

Checkerboard Mesa Sign, Zion National Park, 1950s — Archive & Atlas

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Checkerboard Mesa Sign, Zion National Park, 1950s — Archive & Atlas

Unattributed 1950–1959

AA-2026-D60232

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The National Park Service in the 1950s operated on the confident theory that a tourist standing next to a sandstone monolith needed a paragraph of geology to feel the moment properly. So here is a woman in tailored shorts and knee socks, positioned with the obedient precision of someone told exactly where to stand, next to a sign explaining that the striped dome behind her is a classic example of bedding planes cut by vertical joint cracks in Navajo sandstone. The rock had been doing this quietly for roughly 190 million years before anyone thought to caption it.

She smiles the smile of a person who has just read the sign once and will not retain the phrase "joint cracks" past the parking lot. That's fine. The Park Service already knew visitors wouldn't remember the science, only that they'd stood somewhere impressively named, and built the sign to do the remembering for them. Elevation 5659 feet, it notes, as if altitude were also part of the souvenir.

Behind her the mesa rises in its checkerboard pattern, one erosion axis carving horizontal lines, another carving vertical ones, the two arguing it out over geologic time until they produced something that looks, from a safe distance, exactly like graph paper. Nobody in 1950s Utah found that ironic. They just took the picture and drove on.

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