USGS

National Water Conditions

U.S. Geological Survey
Environment Canada Climate Information Branch

OCT 1971 || NOV 1971 || DEC 1971 || JAN 1972 || FEB 1972 || MAR 1972 ||
APR 1972 || MAY 1972 JUNE 1972 || JULY 1972 || AUG 1972 || SEP 1972 ||

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