Designations

• National Park - March, 5, 1980
  
  
• National Biosphere Reserve - 1976
  
  
• National Monument - April 26, 1938

Acreage

• Gross Area Acres - 249,561

Budget

• FY 2006 Annual Budget - $5,909,000
  
  
• 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

• Total Recreation Visits

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	434,107