Historic Crests
(1) 1,454.30 ft on 06/27/2011
(2) 1,454.13 ft on 06/25/2013
(3) 1,453.72 ft on 06/28/2014
(4) 1,453.54 ft on 04/16/2012
(5) 1,452.25 ft on 07/26/2010
(6) 1,451.96 ft on 06/07/2015
(7) 1,451.94 ft on 06/10/2017
(8) 1,450.93 ft on 06/27/2009
(9) 1,450.46 ft on 06/29/2018
(10) 1,450.33 ft on 07/08/2020
(11) 1,450.33 ft on 09/25/2016
(12) 1,449.36 ft on 06/29/2019
(13) 1,449.20 ft on 05/09/2006
(14) 1,449.18 ft on 06/17/2004
(15) 1,449.17 ft on 08/02/2005
(16) 1,448.01 ft on 07/02/2001
(17) 1,447.95 ft on 06/15/2007
(18) 1,447.56 ft on 07/17/2002
(19) 1,447.55 ft on 05/09/2003
(20) 1,447.28 ft on 08/15/1999
(21) 1,447.08 ft on 06/12/2008
(22) 1,446.36 ft on 04/05/2000
(23) 1,444.74 ft on 07/14/1998
(24) 1,443.09 ft on 08/09/1997
(25) 1,437.93 ft on 08/07/1996
(26) 1,435.97 ft on 07/28/1995
(27) 1,430.72 ft on 07/19/1994
(28) 1,428.29 ft on 08/02/1987
(29) 1,428.14 ft on 06/03/1983
(30) 1,427.95 ft on 04/28/1984
(31) 1,427.91 ft on 03/25/1988
(32) 1,427.81 ft on 12/31/1993
(33) 1,427.34 ft on 05/12/1986
(34) 1,426.95 ft on 07/04/1979
(35) 1,426.95 ft on 04/20/1985
(36) 1,426.94 ft on 07/24/1982
(37) 1,426.41 ft on 05/04/1989
(38) 1,426.05 ft on 04/20/1980
(39) 1,425.93 ft on 06/24/1981
(40) 1,425.06 ft on 06/13/1976
(41) 1,424.86 ft on 06/19/1990
(42) 1,424.84 ft on 07/07/1975
(43) 1,424.10 ft on 07/25/1974
(44) 1,423.75 ft on 05/01/1992
(45) 1,423.74 ft on 06/15/1991
(46) 1,423.22 ft on 07/12/1978
(47) 1,422.98 ft on 05/05/1977
(48) 1,422.27 ft on 06/03/1972
(49) 1,421.10 ft on 07/12/1971
(50) 1,420.60 ft on 04/01/1973
(51) 1,419.46 ft on 07/31/1970
(52) 1,416.78 ft on 08/19/1969
(53) 1,414.30 ft on 06/20/1962
(54) 1,413.22 ft on 06/09/1963
(55) 1,412.91 ft on 07/14/1966
(56) 1,412.85 ft on 05/17/1967
(57) 1,411.87 ft on 05/06/1964
(58) 1,411.68 ft on 09/29/1968
(59) 1,411.60 ft on 06/04/1965

(P): Preliminary values subject to further review.