However, not all forms of artwork along the highway were uncontroversial. In 1977, there were several complaints regarding new billboards that were installed at the northern terminus of the highway, since they blocked the view of the coast. In 1981, an illegal mural that was determined to be incomplete was discovered at the I-8 interchange; while Caltrans discouraged the painting of such murals, they were impressed with the portion that had already been completed. Art Cole, the artist, stepped forward to the department, and was allowed to finish the mural of a desert highland sunrise; following this, Caltrans made efforts to have other murals commissioned.