Sgt. Garth Smith says the well-camouflaged hideaway was discovered by a passing guard Jan. 31 in the woods between campus housing and Research Park.
Smith says the igloo was about 5 feet tall and had walls of snow about 10 inches thick. He says the students had either constructed it themselves or found it abandoned.
Smith says the guard passing through the area heard voices and smelled pot before finding the four men inside.
One of the students was cited for marijuana and possession of drug paraphernalia. All were referred to campus officials for possible disciplinary measures.
Smith says the igloo itself was destroyed with a sledgehammer.