The high court has sided with Yucatan in a dispute that could have put some bordering towns in neighboring Quintana Roo.
Valladolid, Peto, Tzucacab, Tekax, Chemax, Chichimilá, Tixcacalcupul and Chikidzonot would have ended up in another state if Quintana Roo’s shifting border line had been recognized by Mexico’s surpreme court.
Yucatan state officials in June filed an injunction against its peninsular neighbor to prevent Quintana Roo from annexing the municipalities.
Border disputes among all three states on the Peninsula have simmered for years. Quintana Roo was established as its own state, breaking off from Yucatan, in 1974 when the federal government made it a tourism center.
A Campeche-Quintana Roo boundary dispute arose in the late 1990s, but was settled in 2013 when the federal court sided with Campeche. In the decision, Quintana Roo lost its southern border with Guatemala.
Quintana Roo legislators revived the current border dispute in April when it revised its Magna Carta to claim an expanded boundary. Quintana Roo also attempted to grab part of the Calakmul eco-tourist zone in Campeche.