If you're looking for a University of Colorado Boulder self-guided tour then you have come to the right page. The University of Colorado Boulder (CU Boulder) is a large public research university in Boulder, Colorado. There are approximately 33,600 students enrolled of which 28,000 are undergraduate and 5,700 graduate students. There are over 450,000 living alumni worldwide and more than 250,000 alumni still live in Colorado. Boulder itself has been ranked as the best college town in the country multiple times. It’s full of bicycle paths and hiking trails in the beautiful Rocky Mountains!