“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Near Beardstown in Schuyler County, Illinois — The American Midwest (Great Lakes)

The Base Line Survey

The Base Line Survey Marker image. Click for full size.
By Stephen Link, November 28, 2009
1. The Base Line Survey Marker
Inscription. Nearby is one of two sites in Illinois that serve as the basis for all land surveys in the state. It is the point just northwest of Beardstown, where the 4th principal meridian intersects its base line.

Originally, land was measured by "metes and bounds." with known landmarks as points of references. Boundary lines were compass lines or natural boundaries such as stream. This system proved unsatisfactory since landmarks are changeable and compass lines can vary. In May 1785, congress adopted the "rectangular system" of land measurement. In each state or group of states one or more north-south principal meridians and one or more east-west base lines on the parallels of latitude are established at right angles to on another. These lines are determined by astronomical observation and numbered. The 3rd and 4th principal meridians intersect their respective base lines in Illinois and govern all land measurements in the state.

Parallel lines are calculated at six-mile intervals east and west through the territory of each principal meridian. These divisions, called ranges, are consecutively numbered in each direction from the meridian. Similar lines parallel to the base line mark divisions called townships. The six miles squares created by the intersecting lines form government townships.

The number and direction
The Base Line Survey Marker image. Click for full size.
By Regina Gilson, May 9, 2010
2. The Base Line Survey Marker
of the township and range line, such as range 2 west, township 3 north, locate any township in relation to its principal meridian. Government townships are broken down into 36 numbered sections containing 640 acres. Acres form the basis of most property identification.
Erected 1977 by the Illinois Department of Transportation and the Illinois State Historical Society.
Marker series. This marker is included in the Illinois State Historical Society marker series.
Location. 40° 3.025′ N, 90° 29.296′ W. Marker is near Beardstown, Illinois, in Schuyler County. Marker is on U.S. 67, on the right when traveling south. Click for map. Marker is in this post office area: Frederick IL 62639, United States of America.
Other nearby markers. At least 8 other markers are within 4 miles of this marker, measured as the crow flies. Lincoln and the River (approx. 3.6 miles away); Lincoln in Beardstown (approx. 3.6 miles away); Lincoln Photograph (approx. 3.6 miles away); Traveling to Beardstown (approx. 3.6 miles away); Lincoln the Candidate (approx. 3.7 miles away); Site of Abraham Lincoln's Speech (approx. 3.7 miles away); Lincoln the Lawyer (approx. 3.7 miles away); The Beardstown Women's Club (approx. 3.7 miles away). Click for a list of all markers in Beardstown.
Categories. Government
Credits. This page originally submitted on , by Stephen Link of Canton, Illinois. This page has been viewed 1,308 times since then and 98 times this year. Photos:   1. submitted on , by Stephen Link of Canton, Illinois.   2. submitted on , by Regina Gilson of Sugar Grove, Illinois. • Kevin W. was the editor who published this page. This page was last revised on June 16, 2016.
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