Puerto Rico Highway 633
Puerto Rico Highway 633 is an east–west rural road located between the municipalities of Ciales and Morovis, Puerto Rico. It begins at its intersection with PR-149 in Hato Viejo barrio and ends at its junction with PR-155 in Barahona.Puerto Rico Highway 6633 is a spur route located in Ciales. It extends from PR-6685 to PR-149, near to PR-633.