Morphological correlation between the Orion-Taurus ridge and the 3D dust map. Left panel: polar plot of r^MAX as a function of the azimuthal angle in bins of 5° (increasing in the E-W direction); also, r^MAX is computed for T_b(74 MHz) (orange) and the 3D dust map integrated between 300 and 500 pc (blue). Right panel: histogram of the difference between the r^MAX distributions shown on the left. The reported values correspond to the median and the corresponding errors (16th and 84th percentiles).