ALMA observations in the JWST UNCOVER (black contour) area. Left: the shading shows areas covered by either DUALZ ALMA 1.2 mm (gray rectangle) or this work’s ALMA 870 μm (light-gray circles). The pixel size on the image is ﹩0\mathop{.}\limits^{^{\prime\prime} }467﹩, and the total covered area is 29 arcmin². Sources detected only at 870 μm are shown in green, only at 1.2 mm in blue, and at both in purple. Right: the ALMA sources overlaid on the SCUBA-2 850 μm image of the field with the same color-coding.