Dust density along the Plane, based on the 3D distribution obtained after the last inversion step. The Sun is at the center of the figure at (0,0). The Galactic center is to the right. The color scale represents the differential extinction in units of mag per parsec. The dashed black line represents the distance beyond which the final resolution of 25 pc is not achievable due to target scarcity (see text). The dotted white contours correspond to a differential extinction of 0.003 mag.pc⁻¹ and delimit the dense areas.