Geological Survey (U.S.). Relief shown by contours and spot heights. "Surveyed in 1910." "T.G. Gerdine, Geographer in charge. Topography by R.W. Pike.". Dept. of the Interior, U.S. Geological Survey.
Search Results
Geological Survey (U.S.). Relief shown by contours, hachures and spot heights. At top of sheet: Topography. U.S. Geological Survey.
Gannett, Henry, 1846-1914 and Douglas, E. M. (Edward Morehouse), 1855-1932. Henry Gannett, chief cartographer ; E.M. Douglas, topographer in charge ; triangulation and topography by R.H. Chapman. Relief shown by contours, h... Department of the Interior, U.S. Geological Survey.
Geological Survey (U.S.). Relief shown by contours and spot heights. Shows oil wells, reservoirs, tanks, railways, roads, buildings, etc. north of Oil City. The Survey.
Geological Survey (U.S.). Contour interval 20 feet. Surveyed in 1891. Shows mines and placer diggings. U.S. Geological Survey.
U.S. Geological Survey; E.M. Douglas, Geographer in charge; triangulation by E.M. Douglas and T.M. Bannon; topography by W.M. Beaman. Relief shown ... The Survey.
U.S. Geological Survey; E.M. Douglas, Geographer; Frank Tweedy, in charge of section; topography by Pearson Chapman; triangulation by Frank Tweedy.... The Survey.
Geological Survey (U.S.). Henry Gannett, Chief Topographer ; topography by W.B. Corse, T.M. Bannon and E.M. Douglas ; rev. in 1902-1903 by R.T. Evans ; E.M. Douglas, Geograp... Dept. of the Interior, U.S. Geological Survey.
1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 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, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, and 2000. California Geological Survey, California. Department of Conservation, Marshall, Gerald, and Mendes, Eric. This raster dataset contains topographic hillshade for the Elk River watershed in Humboldt County, California. This dataset is the product of the D... California Geological Survey.
Geological Survey (U.S.). Alfred H. Brooks, geologist in charge of division ; topography by D.C. Witherspoon. Surveyed in 1914-1916. Relief shown by contours and spot heights. U.S. Geological Survey.