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\textit{Top}: Position-velocity diagram of CO, NH$_3$, and N$_2$H$+$ emission for filament 7. Blue background shows $^{12}$CO (1-0) emission integrated between $-1 < \textrm{b} < 1$ degrees \citep{Dame_2001}. Black dots show HOPS and MALT90 sources associated with filament 7. The black lines are fits to CO data for the Scutum-Centaurus arm, from \citet{Dame_2001}. \citet{Dame_2011}.  \textit{Bottom}: Plane of the sky map integrated between 0-20 km/s, the approximate velocity range of the Scutum-Centaurus arm in the region around Filament 7. A trace of Filament 7, as it would appear as a mid-IR extinction feature, is superimposed on the CO emission map. The correlation between Filament 7's mid-IR extinction feature and the Scutum-Centaurus's arm more intense CO emission hints that filament 7 may be a spine of Scutum as traced by lower density CO gas