Tactile Maps (IMAGE) American Geosciences Institute Caption The trip leaders created tactile versions of the regional geologic maps used on the trip with materials such as fabric, various grades of sandpaper and puff-paint to represent different features. Credit International Association for Geoscience Diversity. Usage Restrictions None License Licensed 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.