Grown in the province of Narino in southwestern Colombia bordering Ecuador, Narino coffee is distinguished for its smooth body and nutty flavor.
The Narino growing region includes active volcanoes and much precipitous terrain. Most of the coffee is grown at elevations from 1,500 meters to 2,100 meters above sea level. The volcano called Galeras has created the productive soils that make this one of Colombia's best coffee growing regions.
Also see Colombian Coffee.

Fred kabanda says
Details about coffee growing areas