Steep sections of the upper River Irwell (IMAGE) PNAS Nexus Caption Steep sections of the upper River Irwell (Rossendale Valley, Lancashire) first sustained the textile industry along narrow industrial corridors. Credit Tara N Jonell Usage Restrictions None. Higher resolution version available on request. 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.