I'm going to be in Argentina on these dates and would like to get some climbing done... trad, multipitch, all good. Based out of Buenos Aires but willing to travel within Argentina.

You might find a better response from www.summitpost.org, that sight seems to have more of an International climbing community. Good luck.

Katie,

this thread might help a bit...

http://www.mountainproject.com/v/general_climbing/great_exot>>>>>

Lancoche looks like a really cool mountain in a really cool area of the country. Not sure about rock though more so mountaineering.

http://www.mountainproject.com/v/general_climbing/climbing_g>>>>>

this one too.