The CMDs and spatial positions of the point sources detected in the images of five UCHVCs classified as “possible detections.” The UCHVC name appears in the top-left corner of the CMD. Each CMD shows the location of the filter (blue solid line), the distance modulus and distance of the detected stellar overdensity, and the 50% completeness level (green dashed line). In the CMDs, the gray points are the point sources that survive cross-matching with Gaia and SDSS, sources within 3′ of the overdensity peak are plotted in black, and sources that also fall within the CMD filter are overplotted in red. In the spatial position plots, the gray points are point sources that survive cross-matching with Gaia and SDSS, and red points are sources that are selected by the CMD filter. Also marked are the overdensity peak (magenta circle of 3′ radius), the H I ellipse (green), and the reference circle (yellow).