Where to buy fresh milk? (Santiago de Chile)

Upon first arriving in Santiago, I went to the grocery store and wandered around for what must have been a half hour looking, in vein, for the cooler with milk in it.

Finally I gave up and asked "¿Dónde está la leche, por favor?" And thus, I was introduced the unrefrigerated (powdered??) milk. Ugh.

So, does anyone know where I can buy just regular refrigerated fresh milk? Not raw, just regular pasteurized, hopefully organic. Anyone?