¹²CO J = 2−1 intensity map (gray scale), superimposed on ¹²CO J = 3 − 2 (blue contours) and ¹³CO J = 2−1 (white contours) intensity maps. The contour levels of each CO molecule are 30, 40, ..., 90% of the peak value. The ¹²CO J = 3 − 2 and ¹³CO J = 2−1 peak values are 79.0 and 15.5 K km s^-1, respectively. Letters A, B, and C indicate the different MC clumps. The dot symbols mark the mapping points of ¹²CO J = 2−1 and ¹²CO J = 3 − 2, while the black rectangle outlines the mapped field of ¹³CO J = 2−1.