39
YELLOWSTONE EXPEDITION OF 1870

METEOROLOGICAL OBSERVATIONS OF THE YELLOWSTONE EXPEDITION.


 

Date.
 

 

Station.
Aneroid
barometer.
Thermometer
Altitude.*
Remarks
1870.
   
°
Feet.
Worked by Burt's tables
Aug. 22
Fort Ellis, Montana Ter
25.20
62
  Morning.
Aug. 22
         do
25.25
92
4,911
Noon; mean of 2 observ'ns: altitude
Aug. 22
Bozeman Divide
24.10
70
6,140
Noon.
Aug. 23
Trail Camp
24.30
54
5,803
Morning.
Aug. 23
Butler's Ranch
25.10
40
4,837
Evening, stormy weather.
Aug. 24
         do
25.10
40
4,837
Morning, stormy weather.
Aug. 25
Yellowstone Cañon
25.10
40
4,837
Morning.
Aug. 25
Gardiner's River
224.80
77
5,383
Evening.
Aug. 26
         do
24.80
49
5,215
Morning.
Aug. 26
Crossing Divide
23.10
72
7,331
Noon.
Aug. 27
Antelope Creek
23.80
57
6,367
Morning.
Aug. 27
Hot Spring Creek
23.60
60
  Evening.
Aug. 28
         do
23.70
46
  Morning.
Aug. 29
         do
23.70
45
6,546
Morning; mean of 3 obs'ns: altitude.
Aug. 29
High Mountain South
21.60
65
9,113
Noon.
Aug. 29
Washburn's Peak
20.80
50
9,966
     Do.
Aug. 30
Camp Jordan
23.00
50
7,270
Morning.
Aug. 31
Near Falls
22.60
46
       Do.
Aug. 31
         do
22.70
58
  Evening.
Sept    1
         do
22.50
32
7,697
Morning; mean of 3 obs'ns: altitude.
Sept.   1
Mud Springs
22.75
60
  Evening.
Sept    2
         do
22.60
32
  Morning.
Sept.   3
         do
22.60
32
7,487
Morning; mean of 3 obs'ns: altitude.
Sept.   4
Yellowstone Lake
22.60
58
  Morning.
Sept.   5
         do
22.50
44
       Do.
Sept.   6
         do
22.40
38
       Do.
Sept.   7
         do
22.50
32
       Do.
Sept.   7
Langford's Peak
20.35
65
10,327
Noon.
Sept.   8
Yellowstone Lake
22.50
32
  Morning.
Sept.   9
         do
22.60
45
       Do.
Sept.  10
         do
22.50
44
       Do.
Sept.  11
         do
22.60
55
       Do.
Sept.  12
         do
22.60
55
       Do.
Sept.  13
         do
22.40
40
  Morning, rainy and snowing.
Sept.  14
         do
22.50
36
  Morning, snowing hard
Sept.  15
         do
22.60
44
  Morning, rainy.
Sept.  16
         do
22.70
44
  Morning
Sept.  17
         do
22.65
50
       7,714  3-5
Morning. Š
Sept.  18
Snow Camp
22.70
40
7,535
Morning, rainy.
Sept.  19
Firehole Basin
23.50
43
6,626
Morning, clear.
Sept.  20
Madison River
23.50
38
6,594
Morning.
Sept.  21
Madison Cañon
23.60
32
6,434
     Do.
Sept.  22
Madison River
23.70
40
6,382
     Do.
Sept.  23
Madison Settlements
25.00
38
4,937
     Do.
Sept.  24
Madison Bridge       No observations.
        *Altitudes calculated from an ocean-level barometer, 30 inches; thermometer, 60°.
        ‹Fort Ellis, Montana Territory, latitude, 45° 45'; longitude, 110° 53' west.
        ŠRainy. Mean of 15 observations. Altitude.
These altitudes all fall short, as the Aneroid barometer does not indicate with accuracy above 5,000 feet.

                                                                                                                                                G. C. DOANE.
                                                                                                                            Second Lieutenant Second Cavalry.
                                                                                                                   _________
 

                                                                              HEADQUARTERS DEPATRTMENT OF DAKOTA
                                                                                                                   St. Paul, Minnesota, February 8, 1871.

Respectfully forwarded to the Adjutant General of the Army, with the following remarks:

On the 14th day of August, 1870, Mr. H.D. Washburn, surveyor general of Montana, requested an escort for a party desiring to determine by exploration the location of the lake and falls of the Yellowstone. I directed that the escort be furnished, and that an officer be sent with it who could make a report of the trip, as well as a map of the country passed over. Second Lieutenant G.C. Doane, Second Cavalry, was the Go to next page



Go back to Yellowstone Historical Almanac
Go back to Yellowstone History Guide
Go back to The Magic of Yellowstone front page
Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10
Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20
Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30
Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40