I’d think that any alien species advanced enough to travel the stars would see a row of consistent shapes etched into the rock and realize it couldn’t be nature. Maybe one face like rock sure, but 4 faces etched would be too big a coincidence and I think aliens would pick up on that. Now they wouldn’t be able to tell much about us as a species other then we could work rock pretty well. They’d have no idea of what our bodies look like, or that the hair carved into the stone were soft strains of protein instead of a hard helmet like carapace. But I think they’d get intelligent life created the carvings on Mount Rushmore.
I’d think that any alien species advanced enough to travel the stars would see a row of consistent shapes etched into the rock and realize it couldn’t be nature. Maybe one face like rock sure, but 4 faces etched would be too big a coincidence and I think aliens would pick up on that. Now they wouldn’t be able to tell much about us as a species other then we could work rock pretty well. They’d have no idea of what our bodies look like, or that the hair carved into the stone were soft strains of protein instead of a hard helmet like carapace. But I think they’d get intelligent life created the carvings on Mount Rushmore.