Sierra de Órganos National Park, National park and UNESCO World Heritage Site in Sombrerete, Mexico.

Sierra de Órganos National Park is located in Zacatecas and features towering rock formations that rise vertically like massive stone pipes from the earth. These columns were shaped over millions of years by erosion and dominate the landscape.

Sierra de Órganos National Park was created by federal decree on November 27, 2000, covering 1,125 hectares, and is administered by Mexico's Secretariat of Environment and Natural Resources. From the 1950s to the 1990s its rock formations appeared in numerous Westerns, including The Tall Men, Geronimo, Big Jake and The Train Robbers, shot by American and Mexican directors.

The park's rock formations appeared in numerous Westerns from the 1950s to the 1990s, including The Tall Men, Geronimo (1962), Big Jake, The Train Robbers and Revenge (1990), shot by American and Mexican directors. The name comes from the columns' resemblance to organ pipes and organ pipe cacti.

Visitors reach the park via a dirt road from Highway 45. Hiking trails and camping areas are available throughout the protected zone.

The rock columns rise 20 to 60 metres, not the 75 to 100 metres sometimes cited. The park's name comes from their resemblance to organ pipes or organ pipe cacti. Its landscapes drew American and Mexican directors filming westerns in the 1950s, 1960s and 1970s, including Big Jake and The War Wagon.