However, in the last decade, the potential for 'non-traditional' (or re-discovered) regions has become apparent, concentrated in several areas: (1) the Atlantic coast from Mar del Plata (Buenos Aires) south and including the hills in Southern Buenos Aires, and (2) the mountains in Cordoba Province, which had been significant growers in colonial times, but where winemakers have only recently started experimenting with higher altitudes, (3) Entre Rios, an unlikely location because of its humid, warm climate, which had been famous for its wines more than a century ago, and (4) the Patagonian Plateau, a region of cold, windy and arid climates. Except for coastal Buenos Aires, where large investments are underway, most developments have consisted of smaller-scale wineries experimenting with new wine varieties and techniques, with the potential to bring about a completely 'new style' of Argentine wines which will be very different from the typical Malbec produced currently.