How many countries does the Andean mountain range touch (however
slightly) throughout its length, and what are they? I'd say Argentina,
Bolivia, Perú, Ecuador, Colombia, Venezuela and Chile, but I've seen
different answers around the place.

Hi hollyisa!!


The Andes mountain chain is the longest continuous mountain range of the Earth.
It extends itself from the north of Venezuela to the Patagonia in the
southern extreme of South America characterizing the landscape of the
following countries: Argentina, Chile, Peru, Bolivia, Ecuador,
Colombia and Venezuela. In this two last countries it ramifies and it
extends almost until the Caribbean Sea. In its southern part it serves
as natural border between Chile and Argentina.

See for reference:
"Andes":
http://www.peakware.com/encyclopedia/ranges/andes.htm


So the answer to your question is:
The Andes mountain chain touch seven countries Argentina, Chile,
Bolivia, Perú, Ecuador, Colombia and Venezuela.


To confirm this, you can see the following map from the "CIA - The
World Factbook 2002 -- South America Map":
http://www.cia.gov/cia/publications/factbook/reference_maps/south_america.html

Others maps to consult are:
From ThinkQuest:
"Andes Mountains map" 
If it is necessary press the button 'Visit Site'.
http://library.thinkquest.org/5058/map_andes.htm

"Andes Topo map":
http://library.thinkquest.org/5058/andes_topo_map.htm?tqskip1=1


"Mapa físico de América"
http://www.cyberolimpiadas.com.sv/proyectos/DFS3/access_42/fisico.htm


Search strategy:
andean mountains
andes map 


I hope this helps you. Please feel free to request for any
clarification needed, I will gladly repond to your request.

Regards.
livioflores-ga

Prompt and thorough - thanks!