A mysterious silver monolith that was placed in the Utah desert has disappeared less than 10 days after it was spotted by wildlife biologists performing a helicopter survey of bighorn sheep, federal officials and witnesses said.
"We have received credible reports that the illegally installed structure, referred to as the 'monolith' has been removed from Bureau of Land Management public lands by an unknown party," Bureau of Land Management spokesperson Kimberly Finch said in a statement. The agency did not remove the structure, she said.
The Utah Department of Public Safety said biologists spotted the monolith on November 18, a report that garnered international attention. It was about 3.4 metres tall with sides that appeared to be made of stainless steel.
While Utah officials did not say specifically where the monolith was located, people soon found it on satellite images dating back to 2016 and determined its GPS coordinates, prompting people to hike into the area.