Iowa Sanborn 2016 Freedom Rock - Sanborn City Park, Hwy 18 btwn Main & Franklin St 1912 WRC Monument with perched Eagle - City Park on Hwy 18 Sheldon M1835 12LB Mountain Howitzer - Sheldon Prairie Museum, 10th St & 4th Ave Sutherland 1920 Civil War Obelisk - Waterman Cemetery, SE of town off Hwy 10 1949 Monument to Private James Martin, Iowa's Last Union Soldier - Waterman Cemetery, 420 S HiView St