Capt. Adam Z. McGinnis, the deputy area engineer for the U.S. Army Corps of Engineers Los Angeles District's Arizona-Nevada Area Office, and 1st Lt. Luke Ritz, a project engineer at the District’s Fort Huachuca Resident Office, participated in a Science, Technology, Engineering and Math event held Sept. 25 at the Phoenix Convention Center by Ten80 Education, a national program aimed at cultivating STEM skills in youth.