It is a simple question, but one to which we have surprisingly few quantified answers: how much do artisanal miners earn? In this Resources Policy article, co-authored with Nik Stoop and Marijke Verpoorten, we try to find out how much different categories of miners earn, and what determines their earning. It is based on a representative survey among 469 artisanal miners in Kamituga that Nik and Marijke, together with Janvier Kilosho, carried out in 2015. The survey instrument is available here. The author copy can be found here: Geenen, Stoop and Verpoorten 2020_How much do artisanal miners earn_author copy