An environmental group is filing the first lawsuit of its kind on Sept. 26 in the U.S., attempting to force the state of Colorado to recognize the “legal rights” of the Colorado River and the surrounding ecosystem. Activist organization Deep Green Resistance (DGR) has signed on as the river’s “next friends” in Colorado River v. State of Colorado. The Community Environmental Legal Defense Fund (CELDF) is a legal adviser in the case, according to a CELDF press release.