Camp Gruber is an Oklahoma Army National Guard (OKARNG) training facility used for Training of OKARNG soldiers. It covers a total of 87 square miles (230 km²). The base is named after Brigadier General Edmund L. Gruber, a noted artillery officer and the composer of the Army's official song, "The Army Goes Rolling Along". Camp Gruber is located near Braggs, Oklahoma in the Cookson Hills, about 14 miles (23 km) southeast of Muskogee, Oklahoma.