A comparison between the CfA-1.2 m and MWISP ¹²CO images. The top panel shows a wide-field ¹²CO intensity image from the CfA-1.2 m survey, integrated within the [−16, −8] km s⁻¹ velocity range. The middle panel shows an enlarged view of the CfA-1.2 m image toward the Galactic anticenter. The bottom panel shows the ¹²CO intensity image integrated within the same velocity range, observed from the MWISP survey. The blue dashed-line ellipse shows the spiral molecular cloud discovered in this work. For all the panels, the unit of the scale bar is K km s⁻¹.