Although the 'hara' of Shitaragahara means a plain, Shitaragahara was a hilly place along the river and did not provide a visibility enough to overlook the entire enemy camp.
設楽原は原と言っても川に沿って丘陵地が幾つも連なる場所であって、相手陣の深遠まで見渡せるほど視界の良い場所ではなかった。