All images © Zac Henderson, shared with permission Zac Henderson Venerates Devils Tower in Bold Black-and-White Photos NaturePhotography Kate Mothes SharePinEmailCopyBookmarkIn 1906, Devils Tower in northeastern Wyoming became the first national monument in the U.S., preserving a little more than 1,300 acres around the 867-foot-tall column of igneous rock. There, they became the constellation Pleiades, or the “Seven Sisters,” which can be seen over the monument. For nomadic photographer Zac Henderson, the unique geological formation proved an irresistible subject. When it comes to geology, there’s hardly a more iconic example than Devils Tower, which formed tens of millions of years ago as a column of hardened magma was gradually revealed through erosion. Henderson captures the moodiness of clouds casting shadows in black-and-white images that are redolent of Ansel Adams’ deep tonal shifts.