The monument is named after the twin buttes on the horizon, which are held sacred by local tribes. This story appears in the November 2018 issue of National Geographic magazine. Deep in a box ...

This story appears in the February 2012 issue of National Geographic magazine ... It's hard to believe that a national monument girded by towering cliffs—their color burning through the spectrum ...

The White House appears to have deleted language indicating President Donald Trump eliminated two national monuments in a recent executive order, following criticism from local officials over ...