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Granite spires of Idaho’s City of Rocks

Fig. 1Granite spires of Idaho’s City of Rocks

Photo: wilson44691 · Public domain

Landform

A granite batholith weathered into spires, windows, and a silent city on the California Trail.

Field note

The granite is 28 million years old, younger than it looks. Wagon graffiti is still on the rock. Bath Rock and the Twin Sisters are the landmarks. The City of Rocks in New Mexico is a different stone. This one is Idaho’s.

A private leaf

Prints from City of Rocks


Instant paper, this copy only. Write on the white — a line the walk still owes you.

The prints

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Opening the leaf…

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