Cloud Trees by Brad Oldham and Christy Coltrin unites earth and sky in Oklahoma City. Oklahomans have a unique relationship with the expansive skies above their city, built on the rich, red soil of the earth. This dynamic connection is life-affirming yet filled with caution and reverence. In the 61,000-pound Cloud Trees, the artists present these two forces in natural harmony at an impressive scale, creating a euphoric, uplifting experience. Cloud Trees is not only a placemaking sculpture for the OAK community, it is also a backdrop for events, concerts, and presentations with lights and sound built into the tree trunks.