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Reservoir
Location
% Full
SWE % of Avg
Full Capacity (kaf)
Total Capacity (kaf)
Outflow (cfs)
Angostura Reservoir
SD
89
n/a
123
123
1
Alcova Reservoir
WY
85
n/a
184
184
504
Lake Altus
OK
39
n/a
129
149
0
Lake Alice Reservoir
NE
1
n/a
11
11
n/a
Arbuckle Reservoir
OK
96
n/a
72
108
n/a
Buffalo Bill Reservoir
WY
74
95
647
647
313
Bighorn Lake (Yellowtail)
MT
83
0
1011
1279
2866
Box Butte Reservoir
NE
58
n/a
29
29
n/a
Belle Fourche Reservoir
SD
89
n/a
173
173
0
Bull Lake Reservoir
WY
47
110
152
152
31
Bonny Lake
CO
0
n/a
41
170
3
Boysen Reservoir
WY
84
112
742
893
1007
Calamus Reservior
NE
93
n/a
127
127
n/a
Carter Lake Reservoir
CO
67
n/a
112
112
n/a
Cedar Bluff Reservoir
KS
42
n/a
172
364
0
Choke Canyon Reservoir
TX
25
n/a
695
695
n/a
Clark Canyon Reservoir
MT
96
87
174
253
126
Canyon Ferry Lake
MT
81
78
1892
1993
3742
Cheney Reservoir
KS
76
n/a
167
248
n/a
Fort Cobb Reservoir
OK
97
n/a
74
136
n/a
Davis Creek Reservoir
NE
41
n/a
31
31
n/a
Deerfield Reservoir
SD
95
n/a
16
16
10
E. A. Patterson Lake
ND
89
n/a
9
9
10
Enders Reservoir
NE
20
n/a
43
73
2
Flatiron Reservoir
CO
57
n/a
1
1
8
Foss Reservoir
OK
97
n/a
169
350
n/a
Fresno Reservoir
MT
28
59
93
93
40
Gibson Reservoir
MT
12
62
99
99
89
Glendo Reservoir
WY
69
84
517
789
28
Lake Granby
CO
89
n/a
540
540
30
Green Mountain Reservoir
CO
48
n/a
154
154
203
Gray Reef Reservoir
WY
91
n/a
2
2
504
Guernsey Reservoir
WY
42
n/a
46
46
2
Hugh Butler Lake (Red Willow Dam)
NE
48
n/a
36
85
2
Harlan County Lake
NE
76
n/a
314
814
0
Hebgen Lake
MT
85
75
386
400
828
Horsetooth Reservoir
CO
72
n/a
157
157
0
Harry Strunk Lake (Medicine Creek)
NE
96
n/a
36
88
1
Helena Valley Reservoir
MT
74
n/a
10
10
n/a
Jamestown Reservoir
ND
97
n/a
32
221
42
Keyhole Reservoir
WY
69
n/a
189
329
0
Kortes Reservoir
WY
100
n/a
5
5
543
Keith Sebelius Lake (Norton Dam)
KS
53
n/a
35
134
1
Kirwin Reservoir
KS
62
n/a
98
313
n/a
Little Lake Alice Reservoir
NE
11
n/a
1
1
n/a
Lake Elwell (Tiber Reservoir)
MT
77
59
926
1329
402
Lima Reservoir
MT
71
83
84
100
0
Lake Minatare Reservoir
NE
53
n/a
59
59
n/a
Lake Tschida
ND
99
n/a
67
214
105
Lovewell Reservoir
KS
93
n/a
36
86
0
Marys Lake
CO
59
n/a
1
1
445
McGee Creek
OK
104
n/a
114
199
n/a
Merritt Reservoir
NE
91
n/a
67
67
n/a
Lake Nasworthy
TX
86
n/a
11
12
n/a
Nelson Reservoir
MT
81
n/a
79
79
0
Lake Thunderbird (Norman Dam)
OK
102
n/a
106
177
n/a
Lake Estes (Olympus Dam)
CO
71
n/a
3
3
438
Pathfinder Reservoir
WY
67
n/a
1070
1070
483
Pilot Butte Reservoir
WY
81
n/a
34
34
0
Pinewood Reservoir
CO
24
n/a
2
2
0
Pipestem Lake
ND
2004
n/a
9
142
17
Pishkun Reservoir
MT
75
n/a
47
47
0
Pactola Reservoir
SD
93
n/a
56
99
35
Pueblo Reservoir
CO
79
n/a
323
350
n/a
Ruedi Reservoir
CO
69
n/a
102
102
129
Lake Meredith (Sanford Dam)
TX
29
n/a
896
1358
n/a
Seminoe Reservoir
WY
63
104
1017
1017
543
Shadow Mountain Reservoir
CO
92
n/a
18
18
20
Lake Sherburne
MT
67
74
66
66
0
Shadehill Reservoir
SD
85
n/a
120
350
23
Swift Reservoir
MT
n/a
n/a
30
36
n/a
Tom Steed Reservoir (Mtn Park Dam)
OK
65
n/a
97
117
n/a
Swanson Lake (Trenton Dam)
NE
58
n/a
110
244
1
Twin Buttes Reservoir
TX
16
n/a
186
640
n/a
Turquoise Lake (Sugarloaf Dam)
CO
60
n/a
129
129
n/a
Twin Lakes Reservoir
CO
71
n/a
141
141
n/a
Waconda Lake (Glen Elder Dam)
KS
76
n/a
219
942
15
Webster Reservoir
KS
43
n/a
76
259
0
Winters Creek Reservoir
NE
35
n/a
3
3
n/a
Willow Creek Reservoir
MT
70
n/a
32
32
0
Willow Creek Reservoir
CO
66
n/a
11
11
7
Last Updated: 3/18/2024