Spectra of BN over the full wavelength range covered by our SOFIA/EXES observations. Each spectrum corresponds to a separate observation at a different grating setting. Oscillations in the noise level result from the cross-dispersed nature of the instrument, with higher noise regions coming from the edges of the individual echelle orders. Gaps in the spectra correspond to regions where telluric water vapor lines reduce transmission levels to near zero. The water absorption lines discussed herein are all from the spectrum in the middle panel.