This photo was take at Mirror Lake in Medicine Bow National Forest in Wyoming which is at about 10,500 ft or 3,200 m. This cloud appears to be a cumulus congestus and was to the south. The weather around the time of this photo was a bit odd with small batches of hail falling from these dense clouds followed by scattered sunshine. Judging by the skew-T plots and how this cloud is cumulus, the atmosphere would probably be considered unstable.

I also chose to include the skew-T plots from both Grand Junction and Riverton because Medicine Bow is right between these two stations.

Photo taken on Aug 30 2025 at 4:30pm

Unedited Image: