National Secondary Route 164, or just Route 164 (Spanish: Ruta Nacional Secundaria 164, or Ruta 164) is a National Road Route of Costa Rica, located in the Alajuela, Guanacaste provinces.

[1] In Alajuela province the route covers Upala canton (Upala, Aguas Claras, Delicias, Canalete districts).

In Guanacaste province the route covers Bagaces canton (Bagaces, Mogote districts).

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