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2. Intersection limitations

In basic COGO intersections there are just enough measurements made to solve for the unknown location: two measurements to solve two unknowns. An error in one or more measurement will not be apparent in the computations unless the error results in an impossible geometry condition. While COGO provides powerful computational tools, they can't make up for bad or erroneous data. The surveyor should always include additional measurements in order to provide an independent check.

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