Emission of ¹³CO toward the G29.37+0.1 field, depicting the molecular clouds which show morphological agreement with the radio continuum emission from the halo component in G29.37+0.1 (green contours). Each image was obtained by integrating the ¹³CO emission in a velocity range suitable to reveal the structure of the molecular clouds. a) ¹³CO integration for clouds A and B, in the velocity range from 75.6 to 84.3 km s^-1. b) cloud C, integrated between 89.2 and 100.0 km s^-1. The white circle indicates the extension of HESS J1844−030 according to the last update on this source. The scale is linear, in K km s^-1.