Straightened H₂ column density map top and dust temperature map bottom with a width of 2 × 0.63 pc and length of 13.6 pc. Negative values along the y axis corresponds to the eastern offset from the spine centre, while along the x axis 0 pc corresponds to the most southern position of the spine. The black contours on (a) and the orange contours on (b) show H₂ column density contours at 0.4, 0.8 and 1.6 × 10²³ cm⁻². Green and orange crosses mark the locations of the peak column density for each clump along with their ID #. White-dashed line shows where the centre of the spine is. The grey-shaded regions labeled “cm peak” correspond to the radio continuum peaks seen in SUMSS (see Fig. 1).