Suzie, I had a look in my travel bookcase..
Firestone book of maps, covers Chile ,Argie, Uruguay, southern Brazil, Paraguay and Bolivia. Has list ot hotels and campsites for Argentina.
In bookstores , or newsagents in Argentina ONLY
Guide book for Argie: YPF in 4 tomes
PERU: toyota guide, has good maps in back
Colombia: Movistar guide book comes w. large map.
Ecuador: nada

Brazil: Guia Mapograf (replaces Cuatro Rodas) comes with map
Then there are "deDios" tourist maps, there are crap to travel but are great because they show you all the "must see" sites, I found it great to then string all the sites together via the windiest roads
All in spanish, or Portuguese for Brazil