Smoothed density map of all stars with either Hα emission, NIR or UV excesses. The smaller black squares are the Chandra FOVs as in Fig. 1. The red dashed rectangle is a provisional cluster region, while the outer blue rectangle indicates the surrounding reference field-star region. The oblique dotted lines indicate constant Galactic latitude b, as labeled. The enhancement in the lower-left corner corresponds to the globular cluster NGC 6544. Labels in the top-axis colorbar indicate density in units of sources per square arcmin.