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Relief shown by contour. Contains text, diagrams, graphs, maps, and data table. "GPO - 697-923" Includes: Water Quality and Bathymetry of Sand Lake, Anchorage, Alaska by Donald E. Donaldson; Vertical aerial photograph showing the extent of urbanization around Sand Lake in 1975; Sand Lake and vicinity, Anchorage, Alaska; Bathymetry of Sand Lake; Profiles of Selected Water-Quality Perameters, 1972; Selected water-quality data, Sand Lake and Brentwood subdivision run-off water, 1967 to 1975; Concentration of Selected Chemical Constituents in Snowmelt Runoff from Brentwood Subdivision, 1975. Prepared by the U.S. Dept. of the Interior, Geological Survey in cooperation with the Municipality of Anchorage. Includes bibliographical references. Errata slip inserted. |