Maps toward the Chamaeleon region of the γ-ray counts recorded in the 0.4−100 GeV band and of the dust quantities (modified extinction A_VQ in magnitudes, optical depth τ₃₅₃, and radiance R in W m^-2 sr^-1). The total γ-ray photon counts are shown on the left and those spawned by cosmic-ray interactions with gas (after subtraction of other ancillary components) on the right. The γ-ray maps have been constructed on a 7.́5 pixel grid and smoothed with a Gaussian kernel of 0′.1 for display. The dust quantities are shown at 5′ resolution in the left panels, and at the Fermi LAT resolution on the right (after convolution with the energy-dependent response function of the LAT, assuming the local interstellar γ-ray spectrum over the 0.4−100 GeV band, tilded variables). Regions excluded from the analysis have been masked out.