FSX/Prepar3D – Scenery MMSR-Santa Rosalia BCS Mexico. Santa Rosalya is a city located on the Baja California peninsula, in the northern part of the Mexican state of Baja California Sur. It was named after Saint Rosalia, although the reason for the name is not quite clear since the Mission de Santa Rosalya is not located by the town, but rather in Mulege, about 100 km (62 mi) south, and the local parish is devoted to Santa Barbara. This airport does not exist in FSX default scenery. By Fernando Angel G.