Left panels: ¹²CO (1−0) emission distribution maps corresponding to Clouds 1 to 3 obtained with the SEST data. For Cloud 1, the grayscale goes from 0.2 to 2 K, and the contour levels are from 0.3 K (~4.5 rms) in steps of 0.3 K. For Cloud 2, the grayscale goes from 0.2 to 0.25 K, and the contour levels are from 0.3 K (~4 rms) in steps of 0.3 K. For Cloud 3, the grayscale goes from 1 to 8 K, and the contour levels goes from 1 K (~20 rms) in steps of 1 K. The cross indicates the position of the WR star. Right panels: ¹²CO (1−0) emission distribution maps corresponding to Clouds 1 to 3 obtained with the NANTEN data (contours), superimposed onto the DSSR image (grayscale). The dashed rectangles at the center of the field indicate the area of the SEST images at the left.