OVERFLOW OF RED RIVER OF THE NORTH. 
21 
estimates were made from records for corresponding months from 
1901 to 1919. The estimates of annual run-off are only slightly 
affected by the December-March figures, so the annual quantities for 
the entire period of 38 years are considered to be reasonably accurate. 
Table 4. — Run-off (in billions of cubic feet) from the Red River tvatershed 
above Grand Forks, N. Dak. 
Year. 
Jan. 
18S2. 
1883. 
1884. 
18S5. 
1886. 
1887. 
1888. 
1890. 
1891. 
1892. 
1895. 
1896. 
1897. 
1898. 
1899. 
1900. 
1901. 
1902. 
1903 . 
1904. 
1905. 
1906. 
1907. 
1908. 
1909. 
1910. 
1911. 
1912. 
1913. 
1914. 
1915. 
1916. 
1917. 
1918. 
1919. 
2.46 
2.46 
2.46 
2.46 
2.46 
2.46 
2.46 
2.46 
2.46 
2.46 
2.46 
2.46 
2.46 
| 2.46 
2.46 
. 2.46 
. 2.46 
.1 2.46 
.' 2.46 
. I 2.92 
. 2.46 
.1 4.28 
. I 3. 70 
Mean annual . 
2.70 
4.70 
3.76 
2.38 
1.87 
4.08 
.56" 
.37 
.85 
1.36 
2.09 
2.26 
3.27 
.71 
1.20 
Feb. 
1.96 
1.96 
1.96 
1.96 
1.96 
1.98 
1.96 
1.96 
1.96 
1.96 
1.96 
1.96 
1.96 
1.96 
2.41 
1.96 
3.43 
3.10 
2.30 
3.84 
2.64 
2.00 
1.36 
3.15 
.45 
.28 
.56 
1.04 
1.79 
1.68 
2.25 
.48 
.60 
Mar. 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
4.28 
5.12 
4.28 
5.64 
4.00 
4.60 
5.05 
8.24 
5.27 
2.48 
22.60 
2.40 
.80 
.76 
2.44 
3.12 
2.86 
4.71 
4.00 
2.99 
Apr. 
62.48 
34.00 
27.28 
17.46 
18.48 
9.81 
26. 35 
63 
17 
11.25 
47.78 
43.53 
28.70 
4.80 
20.59 
81.92 
8.48 
14.07 
7.32 
28.76 
16.50 
27.58 
50.50 
7.50 
51.50 
38.39 
25.55 
11.25 
20.40 
4.88 
6.42 
18.28 
7.75 
10.77 
57.60 
30.19 
4.69 
14.36 
May 
47.43 
46.12 
14.42 
13.81 
17.64 
5.74 
13.63 
4.04 
3.26 
4.98 
24.60 
42.72 
17.18 
2.99 
35.18 
24.75 
6.19 
11.06 
3.44 
17.99 
21.62 
14.49 
36.79 
June. 
20.89 
15.13 
11.66 
13.89 
8.08 
4.02 
23.38 
2.27 
4.05 
3.90 
20.13 
9.84 
9.10 
4.55 
32. 48 
9.82 
8.57 
14.19 
1.92 
12.44 
16.97 
8.66 
15.62 
21.80 12.51 
22.10 [15.72 
12.20 
15.52 
8.28 
11.65 
4.01 
4.49 
4.88 
29.46 
12.81 
4.96 
15.58 
18.50 
5.06 
4.57 
2.92 
3.08 
12.48 
14.90 
17.58 
5.66 
5.08 
4.79 
July. 
17.03 
8.75 
7.36 
17.52 
5.01 
3.69 
14.20 
1.90 
3.57 
4.37 
10.65 
6.64 
4.90 
4.63 
8.39 
26.13 
10.62 
11.88 
2.13 
10.67 
8.89 
3.86 
10.48 
11.29 
12.22 
8.80 
8.80 
10.12 
2.31 
1.55 
1.87 
2.76 
7.61 
29.58 
30. 40 
3.16 
2.26 
18.55 
Aug. 
10.91 
5.78 
4.63 
14.92 
2.39 
3.73 
6.82 
1.53 
1.67 
3.85 
4.45 
3.62 
2.43 
2.45 
4.57 
19. 20 
4.87 
6.49 
2.86 
6.37 
5.32 
2.82 
4.72 
17.59 
8.55 
5.36 
5.27 
15.00 
1.31 
1.05 
1.50 
2.04 
2.92 
13.20 
1.60 
1.94 
8.98 
Sept. 
6.95 
4.16 
7.36 
7.87 
1.61 
2.81 
3.12 
1.39 
2.13 
2.46 
3.70 
2.55 
1.57 
1.67 
3.48 
7.77 
3.77 
4.67 
7.54 
4.70 
7.73 
4.91 
4.18 
11.70 
6.42 
5.06 
4.58 
8.32 
1.11 
1.01 
1.96 
2.76 
3.06 
4.02 
10.28 
1.45 
1.47 
3.59 
Oct. 
6.94 
4.09 
10.40 
5.98 
1.90 
2.12 
2.88 
1.69 
2.61 
4.07 
3.30 
2.73 
2.34 
1.73 
3.35 
5.85 
4.32 
4.41 
16.68 
5.02 
8.37 
7.99 
4.98 
8.96 
1.11 
1.24 
3.48 
2.81 
3.39 
4.32 
8.20 
1.58 
1.09 
3.14 
Nov. 
5.24 
4.25 
8.44 
5.29 
2.60 
1.82 
2.98 
1.53 
2.61 
4.07 
2.37 
2.30 
2.00 
2.00 
3.10 
3.68 
4.14 
3.93 
13.64 
1.03 
.96 
2.11 
2.95 
3.50 
3.84 
7.20 
2.06 
1.69 
3.69 
Dec. 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.06 
3.65 
3.06 
5.26 
3.24 
5.30 
4.36 
3.22 
2.21 
6.49 
.83 
.91 
1.13 
2.12 
3.12 
3.32 
4.75 
1.16 
1.80 
4.10 
Yearly 
totals. 
189. 63 
134.04 
103.31 
108. 50 
69.47 
45.50 
105. 12 
32.74 
37.83 
50.71 
128. 74 
125. 69 
79.98 
36.58 
122. 90 
190. 88 
62.72 
82.46 
67.19 
104.54 
104. 01 
94.63 
145. 43 
112. 86 
145. 93 
112. 26 
97.18 
84.13 
74.64 
23.59 
27.33 
43.85 
55.53 
93.84 
185.47 
69.90 
30.17 
74.97 
90.87 
Note.— Mean rate of flow 1882 to 1919=2,881 sec.-ft. Maximums shown in italics . 
Run-off data for all of the watersheds listed in Table 3 were com-' 
piled in the same form as shown in Table 4 for Grand Forks, but the 
tables are not here given as all the records are now available, or soon 
will be, either in Wafer Supply Papers of the United States Geologi- 
cal Survey or in reports of the Dominion Water Power Branch, De- 
partment of the Interior, Canada. 
The Grand Forks records cover the longest period of any in the 
Red River watershed and form, therefore, a basis for estimating 
probable future run-off quantities and rates of flow with a degree of 
