Overview

• The reserve comprises El Rosario, Senguio and Sierra Chincua sanctuaries that host millions of monarchs migrating from Canada and the United States each winter.
• On July 10, the site marked 17 years under UNESCO protection with a new 50th-anniversary commemorative image highlighting the discovery of its sanctuaries.
• Governor Alfredo Ramírez Bedolla’s administration committed $1 million to Fondo Monarca in January 2024 to establish payments for environmental services and strengthen habitat conservation.
• Responsible ecotourism continues to support local and Indigenous communities by funding sustainable tourism initiatives and reinforcing forest stewardship.
• UNESCO has formally called on Mexico to enlarge the biosphere’s boundaries and enhance legal safeguards to counteract ongoing habitat loss.