Argentine vintner Nicolas Catena Zapata has been widely credited for elevating the status of Argentine Malbec and the Mendoza region through serious experimentation into the effects of high altitude.[15][16] In 1994, he was the first to plant a Malbec vineyard at almost 5,000 feet elevation in the Gualtallary sub-district of Tupungato, the Adrianna Vineyard,[3] and to develop a clonal selection of Argentine Malbec.[17][18][19]