Never heard of it. Diploma mill?
There's a University of Colorado campus there, and a Naropa University. I can't seem to locate a "University of Boulder"
The University of Colorado goes by many names. CU Boulder is one. UC is not Colorado but Cal. I expect the name should have been University of Colorado, Boulder as opposed to the Denver campus and Med School.
https://www.colorado.edu/today/
My degree was legit.