Observed positions towards seven GMCs within a 2′ × 40′ strip along the major axis of M 33. The strip extends from 10′ south of the galactic center to 33.3′ north. The center of the strip is at 01:34:11.8 +30:50:23.4 (J2000). Circles indicate the 30 m beam size of 28′′ at 90 GHz. Panels show from top to bottom: integrated intensities of H emission (Hoopes & Walterbos 2000) 24; 70 μm emission observed with Spitzer (Tabatabaei et al. 2007); continuum emission between 100 μm and 500 μm observed with PACS and SPIRE in the framework of the HerM33es program (Kramer et al. 2010; Boquien et al. 2011; Xilouris et al. 2012); ¹²CO  2–1 30 m observation and H i VLA data, both taken from Gratier et al. (2010). All data are shown at their original resolutions.