The establishment of Bandelier refers to the creation of Bandelier National Monument in 1916, which was designated to protect the archaeological remains of ancient Puebloan dwellings and the unique landscape of Frijoles Canyon in New Mexico. This area is significant for its rich cultural heritage, showcasing the remnants of the Ancestral Puebloans who lived there from approximately 1150 to 1600 AD, along with the diverse flora and fauna native to the region.