Panels (a) and (b) show zero-moment maps of the CH₃OH (E₁) ﹩{2}_{\mathrm{1,1}}\to {1}_{\mathrm{1,0}}﹩ (E_up = 21.6 K) and the HC¹⁵N ﹩1\to 0﹩ (E_up = 4.1 K) transitions, respectively. Red crosses mark the continuum sources identified at 3 mm in Paper I. Green crosses show the position of the CH₃OH, (E₂) ﹩{5}_{-\mathrm{1,0}}\to {4}_{\mathrm{0,0}}﹩ maser spots. Black crosses mark the DR(a), (b), and (c) positions in the Diffuse Ridge, the NEC-wall (a) and (b) positions, and the NW cloud (a) position (Section 4.2). Black dashed ellipses mark the CC core, the N-red cloud, and the NW cloud. To the left and on top of panel (a) we show R.A.−velocity and decl.−velocity PV diagrams, respectively. In the top R.A.−velocity PV diagram, we mark the N-red cloud with a dashed circle, and two arrows indicate the sources that compose the blended CC core emission in the CH₃OH zero-moment map. PV diagrams of the HC¹⁵N emission are shown to the right and on top of panel (b).