Where to stop in Northern Argentina?

Hi, on my way from Bolivia down to Buenos Airies and wondered where people think i should stop.

I only have about a week to get there, or could just head all the way from Villazon...i know its a long way!!!

Thanks in advance for your advice

Martin

Salta is a nice city and the route from there to Cafayate (hope the spelling is correct) is very beautiful, with colorful mountains and
rock formations like 'el diabo' and 'el anfiteatro'. Cafayate also
haves wineries open to visitors. In Salta you can find lots of agencies arranging tours in this regions. Others options in the region is the
a train going very high up in the Andes, Cachi, Salina Grandes (similar to the salt-formation in Uyuni) and also inka-ruins. Cordoba is supposedly also a very nice city, but I haven't been there myself.

enjoy, Sol

There is a national parque roughly south of Corrientes. You have to access it via Mercedes but it is definitely worth it. Lots of alligators, birds, capybaras, monkeys and snakes (if you are lucky).
You need to have plenty of time though. The name of the park is: Reserva Provincial Ibera del Esteros.

Of course you should visit the Iquazu falls on the border with Brasil and Paraguay but it might not be on the route you want to take.

Jujuy and Salta would be my first choice, they are gorgeous places and besides they are right on the way from Bolivia to Buenos Aires.

You can do Salta city, cerro de los 7 colores,cafayate,train to the clouds. I had an amazing experience there.

Tilcara in Jujuy is a great place to visit, then Salta and Cafayate.
Quilmes ruins en Amaiche del Valle is worth to go... don't miss Posadas and Iguazu Falls.

Good luck!