Spectral γ-ray data for the source MGRO J1908+06. Shown as green circles are the HESS data from Aharonian et al. (2009b). Shown in cyan open circles are the spectral data from the HGPS. Blue spectral points are from VERITAS (Aliu et al. 2014). VERITAS data marked with a square are not selected for the analysis to avoid correlations between spectral points. The Milagro data point is from Abdo et al. (2007). Shown in black, yellow, and red are best fits to all datapoints indicated by filled circles. The black line is a fit to a power-law model. Yellow and red lines are best fits to a power-law model with cutoff at the 90% CL lower limits E_cut,  γ = 29.5 TeV (yellow) and E_cut,  h = 141.5 TeV (red).