nGC3 PCMs for the OB (left panels) and RGB samples (right panels). The corresponding r_gal range is indicated at the top right of each panel. The cross indicates the centroid (weighed by pole counts) of the main off-pole peak of the PCM. The maps were produced using a grid spacing and tolerance of . The colour scales linearly with star counts, indicating larger values with darker colours. In all panels, dotted circles and radial lines correspond to parallels at co-latitudes increasing by 2° and meridians at azimuths every 30°, respectively.