Benthic Microbial Mat Community (image) Penn State Caption This is a close view of a benthic, photosynthetic microbial mat community at the LaDuke Hot Spring in Gardiner, Montana near Yellowstone National Park, showing cyanobacteria and other chlorophototrophic bacteria. Credit Yellowstone National Park Photo Collection Usage Restrictions The image credit must be published along with the image. 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.