A historical marker standing near the Diamond Lakes Visitors Center in Caddo Valley highlights the significance of the Military Road as a major transportation artery during the Civil War and through Arkansas' early history. It also describes Arkadelphia's role as a Confederate manufacturing and supply center during the war: The "powder works" and "arsenal" were among this area's significant contributions to the Confederate war effort.
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Richter, Wendy Bradley, "Marker highlights significance of Military Road" (2017). Articles. 198.