The spatial distribution of the molecular clouds identified in the current work (red hollow circles), Q.-Z. Yan et al. (2021, yellow) and C. Zucker et al. (2020, green) in the Galactic coordinates. The background is an extinction map from J. L. Vergely et al. (2022) of the Galactic dust of disk vertical height ∣Z∣ < 0.4 kpc. The Cygnus (S. Zhang et al. 2024, 2025), Aquila Rift (Y. Su et al. 2020), and Monoceros OB1 (Z. Zhuang et al. 2024) regions are represented by the orange, cyan, and purple sectors, respectively. The origin of the coordinate is the Galactic center, and the distance to the Galactic center is 8.15 kpc. The best-fit spiral arm models from M. J. Reid et al. (2019) are overlaid: Local (pink), Perseus (gold), and Sagittarius–Carina (purple).