For those who may be interested a fairly accurate map of Aconcagua can be found at http://www.aconcaguathemap.com/english/index.htm and both the 1:50,000 and 1:100,000 scale maps are available for sale online and in the lobby of the Hotel Ayelen in Penitentes.

Hello,
You can also explore the topography of Aconcagua and any other place in the world by using this website: topographic maps