Houses for sale in the Sierra Alta residential area. Several models to choose from. Models STARTING FROM $2,145,000. Sierra Alta is one of the developments with the highest added value in the east of the city of Saltillo, enjoying common amenities, green areas, and playgrounds for all its residents.Casas en venta en el residencial Sierra Alta. Varios modelos a escoger. Modelos DESDE $2,145,000. Sierra Alta es uno de los Desarrollos con mas plusvalía al oriente de la ciudad de Saltillo que goza de amenidades comunes, áreas verdes e infantiles para todos sus residentes.