Ischigualasto Provincial Park is a protected area located in the north of the Argentine province of San Juan, in the Cuyo region. The park is famous for its geological formations and unique landscape, earning it the nickname "Valley of the Moon."

The park is situated in the Ischigualasto-Villa Unión Basin, which is known for its sedimentary rock formations dating back to the Triassic period. The park has a unique geology that has been shaped by millions of years of erosion and tectonic activity. The park's landscape includes tall pillars, canyons, and valleys that are striped with a variety of colors.

Ischigualasto Provincial Park is also known for its fossils, which have provided valuable insights into the evolution of life on Earth. The park is home to a variety of dinosaur fossils, including early examples of theropods and sauropods. Other fossils found in the park include those of mammals, reptiles, and plants.

The park is a popular destination for tourists who are interested in geology and paleontology. Visitors can take guided tours of the park and see its unique geological formations and fossils. The park is also a UNESCO World Heritage Site and is an important site for scientific research.