Two-color image toward Reg. 1 with the radio continuum emission at 20 cm (from MAGPIS) displayed in blue (right color bar) and the ATLASGAL emission at 870 μm in green (left color bar). Both color ranges are in Jy beam^-1. The ¹²CO J = 3−2 emission integrated between 5 and 30 km s^-1 is presented in contours with levels of 32, 42, 56, and 68 K km s^-1. The beam of the molecular observations is shown in the top right corner. The positions of the Hii region G018.630+0.309 and the compact dust source ATLASGAL 018.626+00.297 are indicated.