National Secondary Route 170, or just Route 170 (Spanish: Ruta Nacional Secundaria 170, or Ruta 170) is a National Road Route of Costa Rica, located in the Alajuela, Guanacaste provinces.

[1] In Alajuela province the route covers Upala canton (San José district).

In Guanacaste province the route covers La Cruz canton (Santa Cecilia district).

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