National Tertiary Route 604, or just Route 604 (Spanish: Ruta Nacional Terciaria 604, or Ruta 604) is a National Road Route of Costa Rica, located in the Puntarenas province.

[1] In Puntarenas province, the route covers Puntarenas canton (Puntarenas, Pitahaya districts), Montes de Oro canton (San Isidro district).

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