45x90 Marker at exact point, NW of Wausau

45×90: The Center of the NW Hemisphere

Wisconsin feels like the center of it all, doesn’t it? And the 45×90 point proves that for the Northern and Western Hemispheres, it is! Technically, it’s the exact center of the northern half of the Western Hemisphere. On Earth, the 90th Meridian (90°W) marks the halfway point between the Prime Meridian (which runs through London…