Location: Av. Castellot and MX 180, Champoton No signage as this segment of MX 261 begins. There is a weird x5 km/h speed limit though! Location: MX 261 and Av. 500, Champoton Mileage sign as we head out of Champoton. Location: MX 261 and Carr. Felipe Carrillo Puerto, Champoton As we head out of Champoton … Continue reading Mexico Carretera Federal 261, MX-180 to MX-186