An illustration of the geometry of the Spiral Cloud. The left panel is a 3-colour rendering of the spiral cloud. Red colour stand for redshifted gas, and blue colour stand for blueshifted gas. On top of the image, we overlay the suggested rotational axis. In the right panel, we present a 3D ellipsoid, with two longer axes and one shorter axis. The orientation mimic the suggested orientation of the spiral cloud. The ellipsoid (representing the Spiral Cloud) is rotating with respect to its shorter axis, which we have indicated in the plot. The western side of the Spiral Cloud is rotating toward the observer. The angle between the rotational axis of the Spiral Cloud and the rotational axis of the Milky Way disk is estimated to be 22.5°, and the cloud inclination is estimated to be 45°.