"thinking they were something like the Andes"
Chilean Andes (Torres del Paine)
Public DomainChilean Andes (Torres del Paine) - Credit: Officer or employee of the U.S. Government

 The Andes is a vast mountain range on the western coast of South America. It extends through seven countries, from Venezuela in the north, through Columbia, Ecuador, Peru and Bolivia, to Chile and Argentina in the south.

Click here to see a map of South America's western coast.

The Andes are, of course, nothing like the Pennines!