.png)
Lopez held onto the advantage he gained in Friday's queen stage when he won the only mountain finish in the Argentine tour.
It was a hugely satisfying victory for the 28-year-old Lopez, now riding for the Colombian Medellin-EPM team on the Continental Tour after he was dumped by Astana last year over alleged connections to a doctor suspected of doping links.
He claimed victory by 30 seconds from Italian Filippo Ganna of the British Ineos Grenadiers team, with fellow Colombian Sergio Higuita of Bora-Hansgrohe third at 44 seconds.
Welsford of the DSM team claimed his second straight stage honors after also winning the sprint finish on Saturday's sixth stage.- AFP