Grab a cup of coffee for a day of caching.
Do you like Espresso? Do you know what it is? Espresso is a coffee-brewing method of Italian origin, in which a small amount of nearly boiling water is forced under pressure through finely-ground coffee beans. Espresso can be made with a wide variety of coffee beans. Espresso is the most common way of making coffee in southern Europe. It is also popular throughout the world in Switzerland, Greece, South Africa, United Kingdom, Brazil, New Zealand, and of course here in the Unites States.
To solve this puzzle, find the missing three digits in this stereogram and fill them in for x, y, z to obtain the exact coordinates.

N 37° 20.xyz' W 79° 14.277'
Congratulations to Flyhigh342 for the FTF!