Near Poniatowski in Marathon County, Wisconsin — The American Midwest (Great Lakes)
Geological Marker
Photographed by Keith L, September 12, 2007
1. Geological Marker
This spot in Section 14, in the Town of Rietbrock, Marathon County is the exact center of the northern half of the Western Hemisphere. It is here that the 90th meridian of longitude 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
This monument is only a representation of the
intersection of the 90th Meridian & the 45th Parallel.
The true location is N 75°06'38" E, 1,066.18'
from the center of the monument.
Erected by Marathon County Park Commission.
Topics. This historical marker is listed in this topic list: Landmarks.
Location. 45° 0′ N, 90° 0′ W. Marker is near Poniatowski, Wisconsin, in Marathon County. It is on Meridian Road 0.3 miles north of County Road U, on the right when traveling north. Marker is about a 20 minute drive west of Wausau, Wisconsin. Touch for map. Marker is in this post office area: Athens WI 54411, United States
this page online
Regionally, this marker is in Northern Wisconsin. It is also in the American Midwest, on the Great Lakes, and in the Corn Belt. Globally, it is in North America, the Great North Woods, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the territory of the Mississippian Culture and also the Northwest Territory.
Other nearby markers. At least 3 other markers are within 5 miles of this marker, measured as the crow flies: John Gesicki (within shouting distance of this marker); Latitude & Longitude Explained (within shouting distance of this marker); Baesemann Cemetery (approx. 4.9 miles away).
Regarding Geological Marker. This is the exact point half-way between the Equator and the North Pole, and half-way between Greenwich Meridian and the International Date Line.
Additional keywords. northwest hemisphere geographical marker
Photographed by Donald Yochem
2. Geological Marker Marker
Photographed by Donald Yochem
3. Geological Marker Marker
Photographed by Keith L, September 12, 2007
4. 45.00° N 90.00° W Survey Marker Disk
Photographed by Keith L, September 12, 2007
5. Geological Marker
Photographed by Keith L, September 12, 2007
6. Meridian Road and Marker
Photographed by William Fischer, Jr., October 4, 2013
7. BannerB Pointing Out the New Geological Marker
Photographed by William Fischer, Jr., October 4, 2013
8. Geological Marker Marker
Photographed by Donald Yochem
9. Geological Marker Marker
Photographed by Donald Yochem
10. Geological Marker Marker
Credits. This page was last revised on April 21, 2025. It was originally submitted on September 14, 2007, by Keith L of Wisconsin Rapids, Wisconsin. This page has been viewed 7,031 times since then and 247 times this year. Last updated on January 17, 2019, by Donald Yochem of West Bend, Wisconsin. Photos: 1. submitted on September 14, 2007, by Keith L of Wisconsin Rapids, Wisconsin. 2. submitted on January 17, 2019, by Donald Yochem of West Bend, Wisconsin. 3. submitted on January 19, 2019, by Donald Yochem of West Bend, Wisconsin. 4, 5, 6. submitted on September 14, 2007, by Keith L of Wisconsin Rapids, Wisconsin. 7, 8. submitted on October 21, 2015, by William Fischer, Jr. of Reynoldsburg, Ohio. 9, 10. submitted on January 17, 2019, by Donald Yochem of West Bend, Wisconsin. • Bill Pfingsten was the editor who published this page.
