A viewer sent 9NEWS an example of some of the 54 errors she says she counted in the first 31 pages of the yearbook for Valley High School in Gilcrest.
The administration noticed the errors and is having a corrected version reprinted. Students will be able to exchange their copy with an error-free version.
The principal says the administration is taking action to make sure this never happens again.
The superintendent of the Weld County School District RE-1 called the mistakes "totally unacceptable."
The yearbook is put together by students in an elective class. It's unclear how long it will take to reprint the corrected version, and what it'll cost the school.