Speaking of people, there are several villages in Lauca National Park and its surrounding regions. There is Parinacota, as you know from the storybook, and there is also the nearby village of Putre. If you travel to this region, you will most likely stay in Putre!
Parinacota has a population of 29 people (and many llamas!). It is most famous for its 17th century church. Below are a few photos of the village.