The Trump administration is considering reducing the boundaries of six national monuments for possible mining and drilling for energy ...

International Boundary Monument 258 stands as a historic symbol at the border between the U.S. and Mexico, marking the birth of California's shape.

Trump administration targets national monuments for energy development, including sacred land near Grand Canyon, sparking ...

The push would spark an intense legal fight over the right of a president to grant sweeping lands protections under the 1906 ...

In northeastern California, the Upper Pit River undulates through evergreen forests, wet meadows and rugged mountains. It’s ...

Interior Department officials are considering scaling back the boundaries of national monuments in the West to encourage ...