The GDMBR in the US, not a technical ride, but almost car free.
Peru's Great Divide is a must!
Some high passes in the Andes between Chile and Argentina (Sico / San Francisco)
Laguna Route in South West Bolivia...
Have a look at our website, we are 23 months on the road now. Started in Sao Paulo, pedalled to Ushuaia and took a turn North. At the moment we are in Whitefish, Montana cycling the GDMBR.