Four images of three selected areas of the M 33 disk that we used to classify three GMCs: cloud 461 as inactive or A-type (top), cloud 147 with embedded SF or B-type (middle), and cloud 15 with exposed SF or C-type (bottom). The CO J = 2−1 integrated intensity contours for each GMC (solid white line, first contour at 80 mK km s^-1) are plotted on maps of Hα (upper left panel), Spitzer 8 μm (upper right panel), GALEX FUV (lower left panel), and Spitzer 24 μm (lower right panel). The CO J = 2−1 beam is plotted in the lower left corner of each panel and it is marked with a thicker line in the upper left panel.