Dugway Blast A Marine Corps artillery rocket system fires an M270 rocket at Dugway Proving Ground, Utah, Dec. 7, 2018, during Steel Knight, an annual ground combat training exercise. SHARE: Download: Full Size (0.87 MB) Tags: Steel Knight 18, Marine Corps Credit: Marine Corps Cpl. Audrey M. C. Rampton VIRIN: 181207-M-IP473-1081C.JPG Photo Gallery