ACT S/N maps of the dozen highest-significance co-detections, where the S/N is with respect to . Each panel notes the ACT cluster name and redshift from Hilton et al. (2021). Some of these clusters do not have a measured MaDCoWS richness, and as such none is reported. The three clusters lacking richness measures were found to be lower-redshift clusters. Red crosses denote the ACT-identified cluster center. The color bar scale is in units of .