Spring runoff to Lake Powell 1970s
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
45,000
50,000
1971
1972
1973
1974
1975
1976
1977
1978
1979
50,000 cubic feet per second
9,681
9,733
35,620
42,536
10,985
18,328
23,803
38,688
11,930
9,578
17,339
30,021
13,428
15,580
50,942
52,390
12,275
11,256
35,227
29,783
10,129
11,569
30,390
49,003
9,715
10,219
24,829
25,244
7,254
6,269
7,696
7,999
9,166
15,566
27,163
44,172
15,582
28,393
45,654
54,512