Map of Indian Reservation on Pigeon River and Lake Superior, Minnesota (Emerson, 1858)

The General Land Office survey of the Grand Portage reservation, certified at the Surveyor General’s Office in St. Paul by Charles L. Emerson on 9 October 1858: the land the Grand Portage Band of Lake Superior Chippewa (Ojibwe) kept under the treaty of La Pointe in 1854. It is bounded by the Pigeon River on the north and Lake Superior on the south; on the east by a line run N 29° W from Hat Point to the Pigeon, and on the west by the Reservation River and a line run N 29° W from the lakes at its head, both lines with their mile posts, chainages and compass variations; the contents are given as 41,046.39 acres. Two routes run inland from the head of Grand Portage Bay: the Grand Portage, the Ojibwe carrying place around the falls and rapids of the lower Pigeon long before the fur trade made it famous, to the river above the falls; and a double-line “Indian Trail” west to the inland lakes, with an “Indian Sugar Camp” beside its western end. The Pigeon is drawn with its rapids, a 45-foot fall (Partridge Falls) with its own short portage, and the mouth of the Arrow River; hills are hachured along the river and on Hat Point. This is the file’s second sheet, an uncoloured drawing of the same plat without the title, the certificate and the names of the village, the bay and the lake that the signed first sheet carries.

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Source

MapMap of Indian Reservation on Pidgeon River and Lake Superior, Minnesota
AuthorCharles L. Emerson, Surveyor General, 1858
ArchiveWikimedia Commons
RightsPublic domain. An unpublished manuscript plat from the General Land Office’s Surveyor General at St. Paul, filed with the Office of Indian Affairs — a U.S. federal government work, so public domain in the United States. Evidence
AccuracyAbout 3 km (RMS 0.1 km at 31 control points). Placed by hand in a map-queue session and approved by a person. If something sits in the wrong place, members can fix it with Fix placement on the map.
MethodPlaced by hand: a second-order polynomial through 31 points read from the scan — Hat Point, Grand Portage Island and Bay, the Lake Superior shore and its islands, the mouths of the Reservation and Arrow rivers, bends of the Pigeon, and the mile posts of the two boundary lines (the western line is still the reservation’s boundary; the eastern was laid off from Hat Point by its bearing and length) — matched to their positions today. The survey holds closely: half the points are within about 120 m, and the worst, on the more freely drawn upper Pigeon, within 400 m (leave-one-out RMS 0.15 km; the 3 km stated here is the site’s floor). The Grand Portage itself is drawn as a smooth sweep north of the trail’s course on the ground: about half a kilometre off on average, and as much as 1.4 km in the middle. See the methodology.
Version1.0.0, updated 2026-10-16
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Changelog

  • 1.0.0 (2026-10-16): First release: placed by hand at 31 places. From the National Archives (RG 75, Central Map Files 951; NAID 232924555) via Wikimedia Commons; added for Project Homeland.

Credits

  • From the National Archives (RG 75, Central Map Files 951; NAID 232924555) via Wikimedia Commons; added for Project Homeland
  • Georeferencing: Native Routes
  • Scan: Wikimedia Commons

Control points

The full list of control points with residuals is in control-points.geojson. Historic names indexed for search: names.geojson.

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