Rapid Creek Ridge (image) University of Washington Caption This is a photo of the researcher hiking down the ridge at Rapid Creek to collect soil samples. The dense bush and heavy 10 kilogram soil samples slowed uphill progress to less than 200 meters per hour. Credit Andre Eger Usage Restrictions With credit 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.