Corner position recovered from two bearing-tree ties
Two original bearing trees are found and coordinated. The corner is computed independently from each recorded tie, the discrepancy is examined, and the accepted position is checked against the record distance between the trees.
Apply· about 25 minutes by hand· 6 steps
Given
An original corner whose monument is gone, but whose two recorded bearing trees were both found, identified by their scribing and by blazes consistent with the original survey.
Original field notes: from the corner, a 14 inch oak bears N 32°15′ E, 41.2 links; a 10 inch pine bears S 48°30′ W, 27.6 links.
The centers of the two trees were coordinated by the retracement. Oak: N 5,412.71, E 8,930.32. Pine: N 5,377.44, E 8,902.39. Local plane grid, US survey feet, to 0.01 ft.
One link is 0.66 ft (one hundredth of a 66 ft chain). Recorded tie bearings are to the nearest quarter of a degree and tie distances to 0.1 link, which is the precision of the original notes.
Required
The record tie distances converted to feet, and the direction from each tree back to the corner.
The corner position computed independently from each tree, and the discrepancy between them.
The accepted corner position, checked against the record.
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