Haataja is 6'4 and weighs 230 pounds. He has brown (graying) hair with a receding hairline, brown eyes and wears round glasses with very thick lenses.
He was last seen at about 4:30 p.m. on Monday, Dec. 4, and last heard from at 11:30 p.m. that night, when his account on the campus network was opened.
Haataja does not have known access to any vehicles and had not rented any locally, nor has he used public transportation from Chadron.
Haataja may be depressed and endangered.
Information regarding anyone matching his description should be directed to Sgt. Charles James at the Chadron Police Department, 308-432-0510.