290 APPENDIX. 



son's Folly, nearly on a level witli 

 Fort Mackinaw .... 115.8 



Thence to the top of the block H of Fort 



Holmes 260.9 



Total height, 376.7 feet 

 Longitude of Mackinaw, by several sets of obser- 

 vations, Sept. 12, 1820 



Mean latitude of Sault de St. Marie, June 16, 1820 

 Latitude of Turtle Camp, on Lake Superior, June 



22 — primitive bluff (Granite Point. — S.) . 

 Latitude of Keweena Camp .... 



Mean latitude of Sandy Eiver, July 4, 1820 

 Mean longitude (by 25 observations for degrees, 



and 25 observations for time). In time, 6 h. 3 m. 



48 sec. In degrees 90 57 00 



Latitude of the gallais* 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 47t 

 Mean latitude of Sandy Lake post, from observa- 

 tions, 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 AVolverine Camp, July 23, 1 day from 



Sandy Lake 47 4 15 



Latitude of halting-place above forks of Leech 



Eiver on the Mississippi, July 20 . . . 47 24 OOf 

 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. 



* Galet, in the Canadian patois, means a smooth, flat rock. — H. R. S. 

 f A little doubtful. 



