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The following table of the latitude north and longitude west from Greenwich of places within the Territory is given here in this form [for] as affording greater convenience of reference than if given under the head of the several places. The observations were made by Officers of the United States-principally by Nicollet. That they are not in all cases precisely accurate is [proved] shown by the difference of the observations of different persons at the same places: as at Prairie du Chien (Fort Crawford) and the mouth of the Montreal river.

[Data table of latitude and longitude of places]. J.N. Nicollet.

*J.F. Colhoun Astronomer to Long's Expedition.

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