Camp Horn - Credit: Wikimedia Commons
The Camp Horn was a sub camp of the US Army, Desert Training Center in Riverside County, California. The main headquarters for the Desert Training Center was Camp Young, this is where General Patton's 3rd Armored Division was stationed. Camp Horn was near Camp Hyder about miles west of Hyder, Arizona. Camp Horn was just north of the Gila River. Camp Horn was miles east of Yuma, Arizona. Most troop arrived at Camp Horn from the train station at Camp Hyder or the train station at Sentinel, Arizona south of the camp. Read more on Wikipedia
Source: en.wikipedia.org