1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, and 1990. This element was computed using snowfall data from the National Climatic Data Center's United States Climatology database. The extreme date is the ... National Oceanic and Atmospheric Administration.
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1988. Arizona. State Land Department. This data set consists of all interstate highways in Arizona. Converted in the fall of 1988 from the DLG to ARC format. This dataset was created by... Arizona State Land Department, Arizona Land Resources Information System.
1988. Arizona. State Land Department. Depicts geographic boundaries of various land ownership. Ownership holders include Bureau of Land Management, State Trust Land, Private Land, Natio... Arizona State Land Department.
1988. Data layer depicts all rivers and streams. Converted in the fall of 1988 from USGS 1:100,000 scale DLG data to ARC format. Since then, multiple and... Arizona State Land Department.
1988. Arizona. State Land Department. This statewide coverage consists of the Township, Range, and Section grid lines for Arizona. American Indian Reservations are included, but without... Arizona State Land Department.