HistoricSiteMarkers
Colonial America

Mason-Dixon Crown Marker

Manheim Township, York County, Pennsylvania

Marker Inscription

Dedicated October 28, 1984

The Story

The Mason-Dixon Line began as the peaceful settlement of a long and bitter boundary quarrel between the Penn family of Pennsylvania and the Calverts of Maryland. Between 1763 and 1767 the English surveyors Charles Mason and Jeremiah Dixon ran the line westward with remarkable precision, setting stone markers as they went; at every fifth mile they planted an ornate "crownstone" carved with the coats of arms of the two proprietary families. A crown marker like this one, re-dedicated in 1984, honors that painstaking survey and the famous boundary it fixed across the York County countryside.

Why it matters

The line Mason and Dixon drew outlived its colonial purpose to become the symbolic border between North and South — the divide between free and slave states before the Civil War, and ever after a cultural shorthand for the line across America.

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Related people

  • · Charles Mason
  • · Jeremiah Dixon

Related events

  • · Mason-Dixon Line survey (1763–1767)
  • · Pennsylvania–Maryland boundary dispute

Themes & tags

Nearby & related markers

Mason-Dixon Line Crownstone

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This is a crownstone — one of the ornate boundary markers set along the Mason-Dixon Line, the border that surveyors Charles Mason and Jeremiah Dixon painstakingly ran between 1763 and 1767 to settle a bitter, decades-long dispute between two proprietary families. The heraldic crests carved into its faces name those families: the Penns of Pennsylvania looking east, the Calverts of Maryland looking west. Unlike the plainer mileposts, crownstones like this one were imported from England and placed every five miles, each a small monument to a border drawn with astronomical precision through colonial wilderness.

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