Designations
- National Park - March, 5, 1980
- National Biosphere Reserve - 1976
- National Monument - April 26, 1938
Acreage
- Gross Area Acres - 249,561
Budget
- FY 2012 Annual Budget - $7,547,000
- FY 2011 Annual Budget - $7,579,000
- FY 2010 Annual Budget - $7,579,000
- FY 2009 Annual Budget - $7,030,000
- FY 2008 Annual Budget - $6,767,000
- FY 2007 Annual Budget - $6,028,000
- FY 2006 Annual Budget - $5,907,000
- FY 2005 Annual Budget - $5,833,000
- FY 2004 Annual Budget - $4,934,000
- FY 2003 Annual Budget - $4,964,000
- FY 2002 Annual Budget - $4,958,000
- FY 2001 Annual Budget - $4,389,000
Visitation
1963
|
1,200
|
1964
|
1,500
|
1965
|
1,600
|
1966
|
300
|
1967
|
15,700
|
1968
|
31,000
|
1969
|
33,100
|
1970
|
32,000
|
1971
|
24,400
|
1972
|
31,947
|
1973
|
44,700
|
1974
|
31,000
|
1975
|
74,400
|
1976
|
92,600
|
1977
|
87,200
|
1978
|
46,416
|
1979
|
82,937
|
1980
|
104,574
|
1981
|
87,514
|
1982
|
172,287
|
1983
|
205,024
|
1984
|
203,411
|
1985
|
164,132
|
1986
|
172,913
|
1987
|
174,607
|
1988
|
168,592
|
1989
|
152,662
|
1990
|
144,083
|
1991
|
149,263
|
1992
|
169,181
|
1993
|
184,867
|
1994
|
175,226
|
1995
|
525,882
|
1996
|
490,715
|
1997
|
488,757
|
1998
|
574,270
|
1999
|
607,057
|
2000
|
482,571
|
2001
|
520,428
|
2002
|
613,935
|
2003
|
585,919
|
2004
|
537,716
|
2005
2006
2007
2008
2009
2010
2011
2012
|
434,107
365,518
360,554
330,395
418,860
275,128
248,365
265,746
|
|