The Geological Survey is offering a funding opportunity for a CESU partner to conduct research on sediment resources and channel substrates of the Colorado River in Grand Canyon National Park. The purpose of this research is to track the effects of high-flow experiments on sandbars and sand conservation, investigate the interactions between dam operations and sand transport, and monitor changes in channel bed sediment composition. The research will support physical habitat suitability modeling within other projects. This opportunity is being issued under a Cooperative Ecosystem Studies Unit (CESU) Program and is open to eligible recipients who are participating partners of the Colorado Plateau CESU Program. The application deadline is April 5, 2024, at 5:00 p.m. ET. For more information, contact FAITH GRAVES at fgraves@usgs.gov.