View of landscaped hill with open-air pavilion and American flag at the top; steps lead to pavilion on both sides of hill. Two women enter a tunnel cut through the hill; man walks on path in foreground. Printed on front: "Tunnel mound, Belle Isle, Detroit, Mich." Printed on back: "Tunnel mound at Belle Isle, Detroit, Mich. This mound is near the casino on Belle Isle. A cascade flows down its sides and an archway runs through the center. Steps lead to the rest house on the top of mound. Pub. by United News Co., Detroit, Mich."
