In 2015, while in Colombia, I visited La Candelaria - a raised sea-bed turned desert - that I knew from childhood. There I came upon some Muisca cave paintings, mostly forgotten after a nearby mine was forced to cease production. The site has now been closed to the public.
After seeing the beautiful red, black and white pictographs that have been there for over 36.000 years, I had the urge to make pigments from the colourful rocks of the desert. Upon further investigation, it turned out that the red paint was made with cinnabar, ochre and some kind of fat. Since then, I go every year for a month to gather and process rock pigments from the area.