Big Bend National Park is a protected area located in southwest Texas, United States. The park covers over 800,000 acres and includes a diverse landscape of mountains, canyons, and desert. It is named after the bend in the Rio Grande River that forms the border between the United States and Mexico.

The park offers visitors a range of outdoor activities, including hiking, camping, fishing, and scenic drives. The Chisos Mountains, located in the center of the park, offer several hiking trails with stunning views of the surrounding desert landscape. The Rio Grande River also offers opportunities for river rafting and kayaking.

Big Bend is home to a variety of wildlife, including black bears, mountain lions, javelinas, and over 450 bird species. The park is also known for its impressive collection of fossils, with some dating back over 130 million years.

In addition to its natural beauty, the park has a rich cultural history. The area has been inhabited by humans for over 10,000 years, and visitors can explore ancient rock art and historic ranching sites.