smoke plume over Castle Lake (IMAGE) University of California - Davis Caption A wildfire smoke plume billows above Castle Lake, near Mount Shasta, on June 29, 2021. Credit Erin Suenaga/University of Nevada-Reno Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.