Leaders from several Washington and Oregon tribes gathered at the site of the Union Pacific oil train derailment in Mosier Thursday. Tribes expressed their concerns about the transport of fossil fuels through their lands because of the risk it poses to the environment and their treaty fishing rights. Yakama Nation chair JoDe Goudy said the derailment threatens their way of life, putting fishing rights at risk. The gathering took place on the 161st anniversary of the signing of the Treaty of 1855 between the Yakama Nation and the United States government. Tribal leaders from Yakama Nation were also joined by Robert F. Kennedy Jr., who currently serves as Chief Prosecuting Attorney for Riverkeeper and President and Senior Attorney for the Waterkeeper Alliance.