Those opposed to a border barrier through the Big Bend region say the Texas Parks and Wildlife Department should be doing more to stop the construction on state land.

In the coming months, the Trump administration’s construction of border barriers could impact hundreds, even thousands, of archeological sites in the Lower Pecos Canyonlands, where the Pecos River and Devils River join the Rio Grande

As the Trump administration moves forward with a border wall in the region, a local archeologist says early construction activities have already damaged a notorious historic massacre site in Presidio County. Descendants say the wall threatens to further erase a painful and undertold history they’ve worked for years to bring to light.

U.S. Customs and Border Protection Commissioner Rodney Scott said Monday he was “pausing all construction activity” in the West Texas park ahead of a visit to the region this week. Scott’s visit comes after two weeks of public outcry over images of bulldozers and other heavy machinery clearing land in the park.