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'''Position resection and intersection''' are methods for determining an unknown [[geographic position]] ([[geopositioning|position finding]]) by measuring angles with respect to known positions.
In ''resection'', the one point with unknown coordinates is occupied and sightings are taken to the known points;
in ''intersection'', the two points with known coordinates are occupied and sightings are taken to the unknown point.
Measurements can be made with a [[compass]] and [[topographic map]] (or [[nautical chart]]),<ref>Mooers Jr., Robert L., ''Finding Your Way In The Outdoors'', Outdoor Life Press (1972), {{ISBN|0-943822-41-6}}, pp. 129–134</ref><ref>Kals, W.S., ''Practical Navigation'', New York: Doubleday & Co. (1972), {{ISBN|0-385-00246-7}}, pp. 43–49</ref> [[theodolite]] or with a [[total station]] using known points of a [[geodetic network]] or landmarks of a map.
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