Progreso Bridge San Sabastian
This bridge marks the boundary between Jalisco and Nayarit in western Mexico, a crossing that connects travelers heading north from Puerto Vallarta toward Riviera Nayarit. The single-span concrete structure with its yellow guardrails spans a deep ravine surrounded by subtropical vegetation typical of coastal mountain terrain. A small roadside sign at the far end welcomes drivers to Nayarit, signaling the transition between two of Mexico’s most visited coastal states.