GLOSTAR combination (VLA-D+Effelsberg; Brunthaler et al. 2021) image of the region of interest of this study, without the restoration using Urumqi maps (see text for details). The red, green, and white circles mark the known SNRs (Ferrand & Safi-Harb 2012; Green 2019), the THOR SNR candidates (from Anderson et al. 2017), and the GLOSTAR SNR candidates (from Dokara et al. 2021), respectively. The much more numerous H II regions, from the WISE catalog (Anderson et al. 2014) and the GLOSTAR VLA D-configuration catalog (Medina et al. 2019), are marked using grey circles.