PHOENIX – Kevin Grove, a member of the U.S. Army Corps of Engineers Los Angeles District’s Arizona/Nevada Area Office’s Regulatory division, speaks with members of the public at the annual Tres Rios Nature and Earth Festival Mar. 9. Grove and other members of the LA District spoke with members of the public during the two-day festival about USACE projects across the country, including the Tres Rios Flow Regulating Wetlands project in Phoenix’s West Valley.