The robbery happened at the Colorado State Bank and Trust at 201 Wadsworth Blvd. in Lakewood at 4:50 p.m. Aug. 16.
The man entered the bank, presented a demand note and ran away with an undisclosed amount of cash.
The suspect is described as a white male, 18 to 25 years old, 5-foot-7 to 5-foot-10, about 150-180 pounds with a thin build.
Bank robbery is punishable by a 20-year prison sentence for each offense and increases if a dangerous weapon is used in the commission of the crime.
If anyone has any information on the bank robbery above, or any bank robbery, please call the FBI Rocky Mountain Safe Streets Task Force at 303-629-7171; or, you can remain anonymous and earn up to $2,000 by calling CRIMESTOPPERS at 720-913-STOP (7867).