National Secondary Route 135, or just Route 135 (, or ) is a National Road Route of Costa Rica, located in the Alajuela province.
Description In Alajuela province the route covers San Ramón canton (San Ramón, San Rafael, and San Isidro districts), Atenas canton (Atenas, Mercedes, San José, and Santa Eulalia districts), and Palmares canton (Palmares, Zaragoza, Buenos Aires, Candelaria, and La Granja districts).
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