Gibson Peak (IMAGE) Colorado State University Caption Gibson Peak in the North Crestone Creek drainage basin is famous for its visible syncline, where rock layers form a U shape. CSU researchers modeled the extent of ancient glaciers in this basin for the study. Photo by Cece Hurtado Credit Cece Hurtado Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.