Public Land Ordinance of May 20, 1785

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Franklin Cook
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1 Public Land Ordinance of May 20, 1785

2 Act of May 18, 1796

3 Act of May 10, 1800

4 Act of March 26, 1804

5 Act of February 11, 1805 Principles and Rules continued: Corners of half and quarter sections not marked shall be placed as nearly as possible equidistant from those two corners which stand on the same line.

6 The Government can now dispose of parcels of land as small as 160 acres or a quarter section, and has the statutory rules in place to monument and/or define the boundaries.

7 Act of April 24, 1820 This act provided for the division of a quarter section into half quarter sections of 80 acres. The division line was to be run north and south, in the manner, and on the principles directed in the act of Feb. 11, The 1/16 corners were not marked in the Original survey so they are placed as nearly as possible equidistant from the corners on either side.

8 Act of April 5, 1832 This act called for running an east-west line through the halfquarter sections, in accordance with the principles contained in the act of Feb. 11, This created the quarter-quarter section of 40 acres. This is the smallest legal subdivision defined by law.

9 9

10 Subdivision of Regular Section Regular sections are subdivided in accordance with the laws of 1805, 1820 and FIRST- Recover all existent cors., restore any lost corners. Second- Run Straight lines between opposing quarter corners. Third- establish 1/16 cors. equadistant between the two corners that stand on the same line. Fourth- Run straight lines between opposing 1/16 cors.

11 Corner Names

12 Subdivision of Typical Anomalous Sections The parenthetical distances are the derived distances on the plat that were not measured on the ground, used in the calculation of areas. They are to be used to prorate the new measurements obtained in the retracement of sections, whenever there is need for establishing sixteenth corners for control points for subdivision of sections.

13 Mean of N. and S. bdy = (E-W center line) Mean of E-W center line and N. bdy.= or (E-W center of N ½) Total area of Anomalous portion = Base area for each lot or aliquot part = Base area correction = =.195 Areas: LG side: = (36.98) LG middle: = (36.59) SM middle: = (36.20) SM side: = (35.81) HOW DID THEY CALCULATE THE ORIGINAL ACREAGE?

14 Subdivision of Typical Anomalous Sections How do we use these acreages to calculate the Parenthetical distances? Subtraction? = = = = Mean Distance? = 18.19

15 Subdivision of Typical Anomalous Sections FIRST- Recover all existent cors., restore any lost corners. Second- Run Straight lines between opposing quarter corners. Third- establish 1/16 cors. equadistant between the two corners that stand on the same line, except the 3 closing lines.

16 Subdivision of Typical Anomalous Sections Fourth- prorate new measurements for 3 closing lines. rrrrrrrr oooooooo = rrrrrrrr oooooooo = X X = Fifth- Run straight lines between opposing 1/16 cors

17 Anomalous Elongated Sections

18 LOCATING HALF AND QUARTER SECTION LINES, WHERE NO OPPOSITE CORRESPONDING CORNERS HAVE BEEN OR CAN BE FIXED IN PORTIONS OF FRACTIONAL TOWNSHIPS UNDER THE ACT OF FEB. 11, 1805

19 Fractional Section Example Diagram

20 Parallel Lines Original Resurvey

21 Mean Bearings Arithmetic Mean: the mean of the sum of the opposite section line bearings. Weighted Mean: Each bearing is weighted in proportion to its length as to the total length.

22 Weighted Mean Computation (Bearing x Distance) + (Bearing x Distance) + (Bearing x Distance) + (Bearing x Distance) Total Distance

23 Weighted Mean Computation by Traverse and Inverse Traverse: (forward) N. 89ø05'46" E. Dist. at mean elevation: ft. (mean) N. 89ø06'00" E ch. ( ft) (reverse) S. 89ø06'14" W. Lat: Dep: MB1 Traverse: MB1 (forward) N. 89ø35'46" E. Dist. at mean elevation: ft. (mean) N. 89ø36'00" E ch. ( ft) (reverse) S. 89ø36'14" W. Lat: Dep: MB2 Traverse: MB2 (forward) N. 89ø17'56" E. Dist. at mean elevation: ft. (mean) N. 89ø18'00" E ch. ( ft) (reverse) S. 89ø18'04" W. Lat: Dep: MB3 Traverse: MB3 (forward) N. 89ø28'36" E. Dist. at mean elevation: ft. (mean) N. 89ø29'00" E ch. ( ft) (reverse) S. 89ø29'24" W. Lat: Dep: MB4 Inverse: (forward) N. 89ø23'15" E. Dist. at mean elevation: ft. (mean) N. 89ø24'12" E ch. ( ft) (reverse) S. 89ø25'08" W. Lat: Dep: MB4

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