River oases in northern Patagonia
- Place: The province lies south of Mendoza and alongside Neuquén. Vineyards in the Río Negro valley depend on irrigation in a dry landscape. Alto Valle is a key historical growing area; the whole province is not one vineyard climate.
- Cooling: The more southerly latitude, cool nights and wind matter here more than the extreme elevations of the north-west. Sunny days can still ripen substantial reds.