Top: reddening as a function of distance for stars in the area covered by Cha I. As in Fig. 5, the red points are located at the high density region of the cloud. This shows that the reddening experiences a strong jump around 180 pc as was found in Zucker et al. (2019). The other two vertical lines in the plots indicate a distance of 100 and 140 pc. Bottom: same for the region Cha II and Cha III together, showing a reddening jump at 190 pc.