Orientations of the main filaments (enclosed in the orange boxes) in the Ophiuchus-Lupus-Pipe region, shown on the Meisner & Finkbeiner (2014) temperature map. The orientation angles were measured between the filament axis and the direction to a central point near the peak of the temperature map, marked with a closed orange circle in the map. This point is consistent with the location of the last supernova in Upper-Sco (about 2 Myr ago, Neuhäuser et al. 2020).