From TV Guide:
.Amazing Race 20 Season 20, Episode 1
Feb 19, 2012 episode details
The 20th edition of the reality series begins with 11 teams of two meeting in Santa Barbara, Cal., where they receive instructions to fly to Santa Barbara, Argentina, to start their global trek.
since the start was not Santa Barbara....
BUT Santa Barbara Argentina is not that far from Salta....
If Google Earth is right, Santa Barbara is about 135 km from Salta as the crow flies and is at about 6700 feet in the middle of nowhere. I can't even find roads going to it. Google Earth can't give me driving directions from Salta to Santa Barbara. I'm a bit skeptical. It would be pretty isolated from a security standpoint though.
However, this could very well be where the skydiving happens. We already have matched up the river below the sky divers and Google Earth does show river valleys in those mountains. I'll try and match up the river with the location of Santa Barbara.
Update:
Whoops! Here's what Neobie found:
It's Salta alright! Rio Santa Marta near the town of Cafayate, 150km/90mi south of Salta city.Santa Barbara is 135 km/80 mi NORTH of Salta, so it's almost 175 miles away from the skydiving. Now I'm even more puzzled about Santa Barbara. Maybe it's the name of an estate or ranch.