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Cyclists and runners enjoy a warm spring day on the Mayhoffer-Singletree Trail in Superior

CU Boulder gets visitors of all kinds on any given day. Here, Oz a150-pound Great Dane, and 5-year-old Daric visit outside of Old Main. Daric was here with his family to see the LEGO exibit "Hit the Bricks," which contains roughly 1 million

A dusting of snow on the Flatirons as April begins.

As the CU students take the week off for Spring Break, campus is in full bloom.

Students welcome spring during a warm March.

You’d know it as marble, but Bob Sievers sometimes refers to his preferred raw material by another name: calcium carbonate.

We all know and love Ralphie. But let’s not forget about “ Alphie” — Ralphie’s cousin and the world’s only known inflatable fur buffalo.

Byron R. White came to notice for his athletic prowess, then proved himself a star in almost everything else.

In January, the president nominated Neil Gorsuch, a visiting professor at Colorado Law School, for the U.S. Supreme Court.

Play with old technologies in the CU Media Archaeology Lab.