C¹⁸O(1−0) spectra observed toward filaments 23 and 24 in Aquila, located in the south west part of the region. The positions of the two filaments are shown on a blow up of the column density map (cf., Könyves et al. 2010)on the right hand side. Filament 24 shows a single velocity C¹⁸O(1−0) spectrum at V_LSR = 6.87 km s^-1, while C¹⁸O(1−0) spectrum observed toward filament 23 shows three velocity components at V_LSR = 5.77 km s^-1, 9.13 km s^-1 and 10.3 km s^-1. The relevant velocity component associated to filament 23 is most probably the component at V_LSR = 5.77 km s^-1 (the closest to the LSR velocity of the neighboring filament 24), while the other components are likely associated to clouds/filaments observed on the same line-of-sight.