This 'monolith' is an obelisk set up in 1975 in honor of the stroke brigade that died in July 1937 when rectifying a section of the Sonora-Baja California Railroad route to save 21km of track...
Dates & Classification
Questionable monoliths, not confirmed to be knockoffs but likely considering the origin or appearance of the monolith.
Number of Sides
Three Sided (Typical Monolith Design)
Articles & Media