Historic Crests
(1) 2,447.45 ft on 04/22/2001
(2) 2,447.44 ft on 03/04/2003
(3) 2,447.44 ft on 10/19/2002
(4) 2,447.38 ft on 12/06/2000
(5) 2,447.36 ft on 06/08/2005
(6) 2,447.36 ft on 10/22/2015
(7) 2,447.35 ft on 02/25/2013
(8) 2,447.35 ft on 04/21/2007
(9) 2,447.35 ft on 04/28/2006
(10) 2,447.34 ft on 04/14/2012
(11) 2,447.34 ft on 04/29/2010
(12) 2,447.34 ft on 05/23/2008
(13) 2,447.34 ft on 01/08/2017
(14) 2,447.33 ft on 06/30/2016
(15) 2,447.33 ft on 06/15/2009
(16) 2,447.33 ft on 06/16/2011
(17) 2,447.33 ft on 07/01/2014
(18) 2,447.29 ft on 06/14/2019
(19) 2,447.29 ft on 12/31/2018
(20) 2,447.26 ft on 02/08/2004

(P): Preliminary values subject to further review.