Sheepherder's Monuments or stone Johnnies survive the day of the open range. These stone columns were probably built to indicate distance and direction to waterholes and provided the sheepherder with a pastime while tending his flock. — — Map (db m4564) HM
In 1959 following the admission of Alaska and Hawaii to the Union, the U.S. Coast and Geodetic survey officially designated a point 20 miles north of Belle Fourche, South Dakota as the Geographic Center of the Nation.
Entry of Alaska and Hawaii . . . — — Map (db m4867) HM
