Lenticular clouds, stationary, lens-shaped clouds (or flying-saucer shaped), which often cover the summit of Mount Shasta, are speculated by some to mask UFO activity or provide cover for Lemurian ...
one resident took striking time-lapse footage of a lenticular cloud that hovered over Mount Shasta for hours, and in 2018, another was spotted lingering over Lake Tahoe during a gorgeous sunset.