I apologize in advance if this post is redundant, or simplistic. I am new to this stuff and trying to learn.

I am going to Argentina, Chile, and Peru in Feb/Mar for Backpacking. I found topo maps for Argentinia and Chile, but not Peru. Does anyone know of any topo maps for Peru? I would like it to be Mapsource compatible so that I can develop tracks in Mapsource, and then download maps and tracks to a Garmin 60csx. Thanks