Plan de Agua Prieta

The Plan of Agua Prieta (Spanish: Plan de Agua Prieta) was a manifesto, drawn up in the form of a plan, during the Mexican Revolution.

Drafted and signed by supporters of Gen. Álvaro Obregón, the Plan repudiated the government of President Venustiano Carranza. It was proclaimed by Obregón on 23 April 1920, in the northern border city of Agua Prieta, Sonora. The Plan's avowed pretext for rejecting the Carranza administration was a dispute between the federal government and the Sonora state government over control of the waters of the Sonora river, although the underlying reasons included a string of personal interests and political conflicts, including the defeat of Obregón and his party in the 1920 presidential election by the civilian Ygnacio Bonillas, Carranza's chosen successor.

In addition to withdrawing support from Carranza's federal government, the plan also refused to recognise the results of local elections in the states of Guanajuato, San Luis Potosí, Nuevo León, Querétaro, and Tamaulipas, and the governor of the state of Nayarit. It offered to refrain from entering into combat with the authorities, provided that they refrained from attacking the Liberal Constitutionalist Army, headed by Adolfo de la Huerta, at the time governor of Sonora. The plan empowered De la Huerta to appoint interim governors in those states that aligned with or defeated by the Liberal Constitutionalist Army. It called on the state governments to appoint representatives to a junta, which would then select an interim President of the Republic. The interim president would, immediately upon assuming office, call a fresh general election.

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