Overview
- Federal and state authorities inaugurated the 2025–2026 season on Nov. 22 at Sierra Chincua, opening sanctuaries in Michoacán and the State of Mexico daily through March 31, 2026.
- Researchers report the first full-season tracking of individual monarchs using hundreds of solar-powered transmitters and a phone-based detection network spanning North America and the Caribbean.
- Project data include a tagged butterfly released Sept. 27 in Lawrence, Kansas, confirmed in Mexico’s Monarch Biosphere Reserve on Nov. 9 after 43 days in flight.
- Mexican leaders tied the opening to the Plan Michoacán por la Paz y la Justicia, emphasizing community stewardship, recent electrification at Sierra Chincua, and coordinated management by Semarnat and Conanp.
- Tourism officials forecast about 800,000 visitors and roughly 1 billion pesos in revenue this season, with visitor rules and a 150-peso fee set to protect the oyamel forests.