Geographical Center of North American Monument

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In January 1931, an U.S. Geological Survey determined the center of North America in Pierce County. A stone cairn marks the site.

Survey Bulletin Number 817 places the Rugby monument at:
48 degrees 21' 19" N
99 degrees 59' 57" W

The center is marked with a monument or cairn that is pyramid form in shape. It is 21 feet high, 6 feet wide at its base, and setting on a heart shaped foundation.
Top Features
  • Geocaching
  • Open Year 'Round
All Features
  • Open Year 'Round
Cost of Admission
  • Admission: FREE
Event Category
  • Geocaching