Puerto Rico Highway 170
| Ruta 170 | ||||
| Avenida Roberto Díaz | ||||
| Route information | ||||
| Maintained by Puerto Rico DTPW | ||||
| Length | 2.3 km (1.4 mi) | |||
| Existed | 1953–present | |||
| Major junctions | ||||
| South end | PR-206 in Matón Arriba | |||
| North end | PR-14 / PR-731 in Cayey barrio-pueblo | |||
| Location | ||||
| Country | United States | |||
| Territory | Puerto Rico | |||
| Municipalities | Cayey | |||
| Highway system | ||||
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Puerto Rico Highway 170 (PR-170) is a road located in Cayey, Puerto Rico. This highway begins at its intersection with PR-14 and PR-731 in downtown Cayey and ends at its junction with PR-1 and PR-206 in Matón Arriba.