At this Texas state park, you can walk where the dinosaurs once roamed, spotting their tracks between hikes and swims in the ...

The U.S. Army will take control of almost 110,000 acres of federal land along the U.S.-Mexico border to support Border Patrol operations.

The NASA satellite image shows rust-red rock formations in Wyoming—evidence of 220-million-year-old 'megamonsoons'.

The White House said Tuesday it would expand a move to authorize military control of federally owned border land to include ...