Integrated intensity (moment-0) maps of the SWAN dataset (combined NOEMA and IRAM 30m observations) for the J = 1 − 0 transitions of ¹³CO, C¹⁸O, N₂H⁺, HCO⁺, HNC, HCN, and C₂H plus HNCO(J = 4 − 3) and HNCO(J = 5 − 4) at their native angular resolution (∼2.3 − 3.1″). The lines are grouped in different subsets based on their commonly used applications. The maps were created with the GILDAS Island-method (see Appendix C). We show the beam size in the bottom left of all panels as well as a 1 kpc scale bar in the top right panel. The outline of the SWAN FoV is indicated by a dashed ellipse on top of a multicolor HST image (credit: S. Beckwith (STScI) Hubble Heritage Team, (STScI/AURA), ESA, NASA).