How can i find out information about buying land in peru, costa rica,
or central/south america in general?

Specifically, I want to find out the local price per acre of land. 
I'm looking for higher elevation peruvian mountain land, 5-10000 feet,
or a nice plot in costa rica.  thanks

You can find ads like the one below at
http://www.compra-venta.org/peru/inmobiliaria.phtml just click on
'siguientes' to see more of the same, site is in Castillian.

This person is selling 373,507 square feet for $ 280,000 in Cusco,
between Urubamba and Ollantaytambo. That boils down to $ 32,941 an
acre


 VENDO TERRENO DE 34,700 M2 EN EL VALLE SAGRADO DE LOS INCAS, ENTRE
URUBAMBA Y OLLANTAYTAMBO IDEAL INVERSIONES TURISTICAS, PAPELES
SANEADOS, UNICA PROPIETARIA CON TODOS LOS SERVICIOS S CINCO MINUTOS
PISTA PRINCIPAL
Cusco  	(oferta, venta)  	Precio US$ 280.000  	( Teléfono  Correo  contactar )

I'm looking for land that is outside of the cities.  Away from masses
of humanity thanks.

Hello

I'm from Peru. The problem here is that we have 3 zones: Costa (next
to the sea), sierra (central zone or Andean Zone) and Selva (jungle).
So, you can have your terrain in any of those zones, and prices vary
of course depending on the zone. In the Andean zone you can find
REALLY cheap terrains. That doesn't includes Cuzco, because it's a
turistical zone. Very nice zones you can find in Huancayo for example,
or Huancavelica. In Huancavelica there is a place called Pampas, very
rustic and very low in population, main activity is agriculture. Now,
please be aware that those are very poor zones, so, you can't find
technology there (I think you want that). So, please tell me which
zone do you preffer.

from the way you describe, i would prefer the pampas area.  a place
with cheap land is what i would want. thanks