Malbec and the Terroir of Doña Paula Lynn January 29, 2018 February 2, 2018 3 Comments on Malbec and the Terroir of Doña Paula Argentina is Malbec country. Head to Mendoza and the Uco Valley where it thrives in a variety of soils and temperatures. This is where Doña Paula is located, and where viticulturist Martin Kaiser studies terroir.