Integrated intensity maps of the ¹²CO(2-1) emission from some of the most prominent outer Galaxy LSFs identified (in colour) within the structure masked data defined by the dendrogram. In grey-scale, the emission across the line-of-sight that does not belong to the structure is shown. The cyan line displays the filament spine. In the box, the structure name is indicated. In the panel titles, the length (l), the aspect ratio (AR = length/width, with the width inferred from the medial axis method/RadFil), and the velocity dispersion (σ_v, calculated as the intensity-weighted second moment of velocity) of the structures are shown. The velocity range spanned by the structures is reported in Table C.1 as 5th and 95th percentiles of the LSF velocity distribution.