Context : Aims : We carry out a multiwavelength study to characterize the H I supershell designated GS 118+01 - 44 , and to analyse its possible origin . Methods : A multiwavlength study has been carried out to study the supershell and its environs . We performed an analysis of the H I , CO , radio continuum , and infrared emission distributions . Results : The Canadian Galactic Plane Survey ( CGPS ) H I data reveals that GS 118+01 - 44 is centred at ( l,b ) = ( 117 \aas@@fstack { \circ } 7 , 1 \aas@@fstack { \circ } 4 ) with a systemic velocity of -44.3 km s ^ { -1 } . According to Galactic rotation models this structure is located at 3.0 \pm 0.6 kpc from the Sun . There are several H II regions and three supernova remnants ( SNRs ) catalogued in the region . On the other hand , the analysis of the temperature spectral index distribution shows that in the region there is a predominance of non-thermal emission . Infrared emission shows that cool temperatures dominate the area of the supershell . Concerning the origin of the structure , we found that even though several OB stars belonging to Cas OB5 are located in the interior of GS 118+01 - 44 , an analysis of the energy injected by these stars through their stellar winds indicates that they do not have sufficient energy to create GS 118+01 - 44 . Therefore , an additional energy source is needed to explain the genesis of GS 118+01 - 44 . On the other hand , the presence of several H II regions and young stellar object candidates in the edges of GS 118+01 - 44 shows that the region is still active in forming new stars . Conclusions :