Geological Marker

This spot in Section 14, in the Town or Rietbrock, Marathon County is the exact center of the northern half of the Western Hemisphere. It is here that the 90th meridian of longtitude (sic) bisects the 45th parallel of latitude, meaning it is exactly halfway between the North Pole and the Equator, and is a quarter of the way around the earth from Greenwich, England.

Marathon County Park Commission

"Geological Marker." The Hi-Line and the Yellowstone Trail: To Glacier Park and Back Again. 1 Sept. 2004. Lacus Veris. 19 Apr. 2024 < Hi-Line and the Yellowstone Trail/The Wide Missouri/Marker: Geological Center of the Northern Half of the Western Hemisphere 2004-08-11 10.13.46.shtml>. Last modified 6 Oct. 2015. Served 5286 times between 18 May. 2010 and 19 Apr. 2024. Contact