John Lopez's scrap iron sculpture “Draft Horse” is on exhibit at Prairie Berry winery in Hill City. There’s a reception this Saturday from noon to 3 pm. Over the past decade, Lopez has been working on The City of Presidents project in Rapid City. John Adams, John F. Kennedy and John, Jr., Calvin Coolidge, Teddy Roosevelt and Ulysses S. Grant are a few of the presidents Lopez has placed on the street corners so far. He also worked on sculptures of former governors Arthur Mellette and Harvey Wollman for the Trail of Governors in Pierre.