The Hotel Aconcagua is a 4-star establishment, situated in the center of the city of Mendoza, capital of the Province, of Mendoza, Argentina. PCIA. Mendoza is situated in western Argentina, near the Andes. It has 159 rooms with great views of the surrounding mountainous area and of the city and is one of the most reputable hotels in terms of quality of hotel services. It is equipped with modern technology and has a good restaurant, a swimming pool and a spa.