Latitude of the gallais[203] on the Grand Portage of St. Louis, July 6, 1820 46 39 34 Latitude of camp at head of Grand Portage, July 8, 1820 46 41 07 Latitude of camp at west end of Savanna Portage 46 51 47[204] Mean latitude of Sandy Lake post, from observations, July 16 and 25 46 45 35 Mean longitude of Sandy Lake post, from 4 sets of observations, July 15 and 16 93 21 30 Latitude of Wolverine Camp, July 23, 1 day from Sandy Lake 47 4 15 Latitude of halting-place above forks of Leech River on the Mississippi, July 20 47 24 00[205] Latitude of camp at Lake Winnipec, July 20 47 30 56 Latitude of halting-place near first return camp, July 21 47 27 10 Latitude of return camp; near the above, same day 47 26 40 Latitude of camp at Buffalo hunting-ground, above Pe-can-de-quaw Lake, July 28 and 29 46 00 00 Breadth of river at camp on the Buffalo Plain, 148 yards Latitude of halting-place between the Great Falls and St. Francis River 45 25 43 Breadth of river at camp above Falls of St. Anthony, 200 yards Mean latitude of Fort St. Anthony, new site, July 31, by 5 sets of observations 44 53 20 Mean longitude of Fort St. Anthony, new site, July 31, by 3 sets of observations 92 55 45 Latitude of Fort Prairie du Chien, Aug. 6 and 7. 43 03 19[206] Latitude of Fox and Ouisconsin Portage, Aug. 14 and 15, 43° 42´ 36´´; say 43 42 00 Latitude of camp near mouth of River De Loup, Aug. 17 44 6 44 Latitude of Fort Howard, Green Bay, Aug. 21 44 31 38 Longitude of Fort Howard (some error), probably between 87° 45´ 30´´ and 87 46 00 Latitude of camp at Sturgeon Portage, Lake Michigan, Aug. 23 44 47 43 Latitude of camp 3 miles north of the Manetowag, Aug. 24 44 12 47 Latitude of camp south of the Sheboyegan, Aug. 25 43 41 26 Latitude of camp at Milwaukie, Aug. 26 43 01 35 Mean latitude of Fort Dearborn, Chicago, by 6 sets of equal altitudes, Aug. 31, and meridian altitude 41 54 06 Mean longitude of Fort Dearborn, 3 sets of observations. In time, 5 h. 50 m. 8 sec. In degrees 87 32 30