The structure, which is between five and six feet tall, popped up near a popular hiking trail overlooking the 14 Freeway.
Mysterious silver monolith found in Utah desert has disappeared
Since the first monolith was discovered in Utah, others that are similar have been spotted in Northern California, South America and Europe. And now, in the Santa Clarita Valley.
It's unclear who placed the monolith there or when. The structures, however, usually disappear within days.