Five areas – Bonampak, Cerro de La Silla, Río Bravo del Norte, Yagul, and Yaxchilán – are designated by the Mexican federal government and are administrated by the National Commission of Protected Natural Areas (CONANP).
Six others are designated and administered by state governments.
[1] CONANP defines Natural Monuments as areas that contain one or more natural elements, that have a unique character, aesthetic, historic, or scientific value, that require absolute protection.
Sites do not need to have a variety of ecosystems to be included in this category.
[2] As of September 2021, there were eleven sites in Mexico designated as natural monuments.