The bow of fishing boat operated by the U.S. Army Corps of Engineers Sacramento District points toward the shore of the Sacramento River in Hamilton City, California, October 13, 2023. Thousands of North American green sturgeons migrate each fall through the river as they migrate southward to the brackish waters of the San Francisco Bay. The USACE Sacramento District Planning Division has inserted telemetric tags in 85 green sturgeons over the past four years, which is helping them gather behavioral data on the ancient fish species. The data is then analyzed to determine the degree of impacts USACE civil works projects may or may not have on the species that since 2006 has been listed as threatened under the Endangered Species Act. (U.S. Army photo by Ken Wright)