Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean: Vol. 1, Pt. 2

458
PARTIAL RESULTS OF EXPLORATION.
Heights by the Batrometer-Continued.
Height in
feet above
the sea.
Height of Fort Benton............................................
Teton river.....................................................2.
Teton or Tanzy river................................................
Summit towards the Prairie lake, 20. 9 miles........................
Prairie lake-.................................-...............3,558
Summit towards Sun river, 5.5 miles...............................
Sun river..........................................................
Sun river --------------------------------------------------- - -------
Crown Butte creek-.........................................-......
High ridge, 5. 6 miles -------------------------------------- - ------
Dearborn river crossing, 17. 3 miles-.........................3..9..
Dearborn river ---------------------------------------------- - ------
Eastward base of ridge or pass, 7.1 miles...........................
Summit of pass, 8.5 miles........................................
Western base of pass, 8. 9 miles...................................
Blackfoot river -.. —-----------------------—... —------------- - ----
Blackfoot river ---------------------------------------------- - ------
Blackfoot river.....................................................
Blackfoot river.....................................................
Distance fiom camp 6.8 miles.....................................
Distance from camp 7.7 miles................................3..8.
Distance from camp 8.3 miles.....................................
Distance from camp 9.8 miles.....................................
Distance from camp 11 miles......................................
Distance from camp, 16 miles.....................................
Distance from camp, 17 miles......................................
Blackfoot river......................................................
Elevation, 3.2 miles..............................................
Elevation, 9. 3 miles..............................................
,St. Mary's river.....................................................
Crossing St. Mary's river, 18. 3 miles. ——.........................3.
St. Mary's village.........................................
29. - ------- 4 St Mar's illae —-----------------------------------— 3,28
St. Mary's river --------------------------------------------- - - -----
St. Mary's river ------------------------------------------------- -----
Bitter Root river..............................................2......
Elevation, 5.6 miles..............................................
Elevation, 9. 4 miles...............................................
Elevation above the camp, 87, 13. 8 miles............................
Jocko tributary.....................................................
Jocko river -..... —----------------------—........................
Flathead River crossing, 10. 8 miles.................................
....................................................................
Elevation, 9 miles ------------------------------------------ ------
Elevation, 9. 5 miles.........I....................................
Cainas prairie -----—..........................................3..14
Summit above prairie, 3. 4 miles....................................
Descent to river bluff, 9. 3 miles....................................
Clark's fork of Columbia river........................................
High Rock, 9.7 miles.............................................
Point of mountain, 16.7 miles......................................
Thompson's prairie --------------------------------------------------
River level, 12.4 miles............................................
High bluff, 16. 2 miles.......................................3,.
Valley of Clark's fork................................................
Elevation, 9. 9 miles..............................................
Valley of Clark's fork................................................2
Elevation, 2 miles..........................................2..67.
.Valley of Clark's fork................................................
Summit of mountain.................................................
Mountain point, 5.8 miles..........................................
o9 Pend d'(reille lake.................................................
21. —-------- 100 Pend d'Oreille lake —..................................................
22 —-------- 101 Pend d'Oreille lake-...............................................70.
23to25 —---- 102 Crossing below lake —..................................................
Summit of Spokane country, 20. 5 miles...............................
25 —--------- 103 Spokane prairie —..................................................2,18
26 —----—.....................,,4 2,179..............
....................................................................
Spokane crossing, 4 miles-..........................................
Date.
Number o
camp.
Place.
Sept.
11 to 16.........
2, 39
2, 350
3,1()5
3,836
3,558
3,702
3,115
3,169
3,669
4,235
3,955
4,091
4,871
6, 044
5,448
4,957
4, 470
4, 350
3,280
3,361
3, 836
3,504
3,975
3, 99
3,298
3,592
3, 256
3, 502
3, 065
2,868
3, 096
3,284
2,777
2,868
2,840
3,081
3,810
3, 920
2,966
2,718
2,424
2,367
2,775
2,671
3,149
3, 313
3, 036
2,160
21772
2,637
2,131
2,140
3, 069
2, 048
2,787
2, 002
2,670
1,980
2,886
2,664
..........
71
72
73
74
75
76
..- -..
19 --------------
20-.. —
77
22 - - - - - - - - - - - - - -
24 --------------
—.
78
79
80
81
27..............
82
28 --------------
83
84
85
86
87
29...............
Oct. 2 --------------
. 3 to 5.. —-... —
5..............
6 —----
- - - - - - - -
7..............
8..............
88
89
90
9 —-------------
91
lo,to 12........
92
12 to 14........
93
15..............
94
96
97
98
99
100
101
102
103
104
105
17 --------------
18..............
19 to 21.........
21 --------------
22 --------------
23 to 25........
25 --------------
26..............1
27..............I