One of the main achievements of the Monarch Butterfly Fund, with 24 years of operation, has been reducing deforestation in the core zone of the Monarch Butterfly Biosphere Reserve (RBMM, acronym in Spanish). This success reflects the synergy among government agencies, civil society organizations, and forest-owning communities. In recognition of this collective effort, the government of the state of Michoacán made a financial contribution to this endowment fund, reinforcing long-term economic support for forest landowners who carry out conservation actions and ensure forest cover is maintained in the core zones of the RBMM. In addition, the Monarch Butterfly Fund continued contributing to the significant reduction of illegal logging and the recovery of forest cover in monarch butterfly habitat, as shown by analyses led by the World Wildlife Fund (WWF).