The Tourist Office in Iznajar is the best I've seen, with displays and models of past traditions. What particularly caught my eye was this great little model of a Traditional Olive Oil Mill.
For the real thing, in my nearest town of Martos there is a mill that still produces some of their olive oil with a traditional press.
See the Monday Morning Photo list.
Where to stay in Iznajar - the lovely Finca Las Encinas