The SP -171 is a state highway in the state of São Paulo in Brazil.
It passes from north to south the entire micro region of Paraibuna - Paraitinga. It has a length of 70 km, starts in Guaratinguetá, runs over Cunha and ends at the state border with Rio de Janeiro. From there it leads to the classification RJ -165 on to Paraty.
- Road in Brazil
- Transportation ( State of São Paulo)