Molecular observations towards the shell- and wing-shaped SNRs. Top: footprint of the IRAM observations of VRO 42.05.01, including the observations from this work (the continuous area in the southern half of this map) and those in Arias et al. (2019a, the two separate regions in the northern half). The velocity-integrated emission is shown for the ¹²CO (J = 1−0) transition. The contours are from the 1420 MHz Canadian Galactic Plane Survey image of VRO 42.05.01 (Wright et al. 2010). Bottom: integrated spectra for the APEX G 350.02.0 observations, ¹²CO (J = 2−1) transition. The radio contours are from the 88 MHz GLEAM image of G 350.0-2.0 (Hurley-Walker et al. 2019).