Spectroscopically confirmed families of multiple images in MACS 1206 overlaid on a color composite image based on 12 CLASH filters (from optical to near-infrared wavelengths). White and green circles indicate, respectively, the tangential (μ_tan>μ_rad) and radial (μ_tan<μ_rad) multiple images (see Eqs. (3) and (4)) used in our strong lensing model (see Table A.1). The three red circles indicate multiple images that are excluded from our models because they might be significantly deflected by massive and angularly close early-type galaxies at distances between those of the galaxy cluster and the sources.