Thursday, July 23, 2026

Question: In what year did Lake Powell finally reach full pool after the completion of Glen Canyon Dam in 1963?

Answer: 1980. Lake Powell began filling on March 13, 1963, and reached full pool of 3,700 feet on June 22, 1980, per the U.S. Bureau of Reclamation. It hit its all-time high of 3,708 feet in 1983 and has not come close since.