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During 2009, the Alaska Division of Geological & Geophysical Surveys continued a program, begun in 2006, of reconnaissance mapping of surficial geology in the proposed natural-gas pipeline corridor through the upper Tanana River valley. The study area is a 12-mi-wide (19.3-km-wide) area that straddles the Alaska Highway from the western boundaries of the Tanacross B-3 and A-3 quadrangles near Tetlin Junction eastward to the eastern boundaries of the Nabesna D-1 and C-1 quadrangles along the Canada border. Mapping during 2008-2009 in the Tanacross and Nabesna quadrangles linked with the mapping completed in the Tanacross, Big Delta and Mt. Hayes quadrangles in 2006-2008. Surficial geology was initially mapped in...
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This is a geochemical data set from the reanalysis of 44 rock samples collected between 1966 and 1970, and 107 sediment samples collected in 1966 and 1967. These samples were collected by the U.S. Geological Survey for a study investigating the mineral resources of the Idaho Primitive Area (Cater et al., 1973). The samples are from the Lower Middle Fork of the Salmon River, including the tributaries of Big Creek, Camas Creek, Brush Creek, Wilson Creek, Waterfall Creek, Ship Island Creek, Reese Creek, Stoddard Creek, and Papoose Creek. The overall objective of this study is to characterize the regional impact of legacy mining for the Frank Church River of No Return Wilderness Area. Mary P. Rossillon (1981) explored...
Categories: Data; Tags: Annie Creek, Atomic absorption analysis, Atomic emission spectroscopy, Beaver Creek, Big Creek, All tags...
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Fort Belknap Indian Reservation. Mouth of Beaver Creek Canyon, T. 25 N., R. 26 E. Hanging gulch at left at level of No.2 bench. Montana. July 24, 1921.
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This USGS data release evaluates the impact of historical mining sites on water quality using samples collected in late July 2021 from Big Creek tributaries Coin Creek, Smith Creek, and Monumental Creek in Valley County, Idaho. These data were collected to support a fisheries mining impact assessment in the Middle Fork Salmon River. Specific conductance, pH, and stream temperature were measured in the field. Analyses include major cations and anions, alkalinity, trace metals, total mercury, and methylmercury.
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During 2009 the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted reconnaissance interpretive mapping of permafrost in Alaska Highway Corridor Segment 3, a 12-mi-wide (19.3-km-wide) corridor that straddles the Alaska Highway through the Northway-Tanacross Lowland and the southern Yukon-Tanana Upland from Tetlin Junction to the Canada border. This work was an extension of permafrost mapping done in Alaska Highway Corridor Segment 1 from Delta Junction to Dot Lake in the Big Delta and Mt. Hayes Quadrangles during 2006-2007 and Alaska Highway Corridor Segment 2 from the Robertson River to Tetlin Junction in the Tanacross Quadrangles during 2008. Primarily, we inferred the extent of permafrost and...
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Kuskokwim airborne magnetic and radiometric survey, Sischu Mountains, Geophysical Report 2024-1, covers parts of the Ruby, Kantishna River, Mt. McKinley, Medfra, and Ophir quadrangles north of McGrath, Alaska. Magnetic and radiometric data were collected with a helicopter between July 14, 2023, and October 15, 2023, by Geotech Ltd. The survey contains a single block covering 8,008 km2. A total of 25,878 line-kilometers were collected. The magnetometer was installed inside the stinger attached to the helicopter nose. The airborne gamma-ray spectrometer was mounted on the interior floor of the helicopter cabin. The block was flown with a line spacing of 400 m. The mean ground clearance is 192 m with a nominal survey...
Categories: Data; Tags: Aeromagnetic, Aeromagnetic Data, Aeromagnetic Map, Aeromagnetic Survey, Airborne Geophysical Survey, All tags...
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This data release includes three tables containing cosmogenic beryllium-10 and aluminum-26 concentrations and related data from samples collected at four sites in central Alaska in 2020, prepared in 2022 at the University of Vermont (UVM), and measured at the Purdue Rare Isotope Measurement lab (PRIME) in 2022. The file "burialAge_siteLocations_centralAK_bender.csv" contains site locations in the NAD83 reference frame, and burial ages computed from raw data contained in the other files. All files are linked by the site_id_short field.
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The White Mountains airborne magnetic and radiometric geophysical survey covers parts of the Livengood, Circle, and Fairbanks quadrangles 25 kilometers north of Fairbanks, Alaska. Magnetic and radiometric data were collected with a fixed-wing aircraft June 30 to August 22, 2021 by MPX Geophysics LTD. A total of 36,933 line kilometers were collected covering 13,423 square kilometers. The magnetometer was mounted to a rear-facing fixed boom (tail stinger). The radiometric crystals were located in the cabin of the aircraft. The White Mountains survey was flown with a line spacing of 400 meters (m) and a mean ground clearance of 270 m. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30756....
Categories: Data; Tags: Aeromagnetic, Aeromagnetic Data, Aeromagnetic Map, Aeromagnetic Survey, Aggie Creek, All tags...
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Little Rocky Mountains: No. 2 bench heading at a great notch in the wall of upturned Paleozoic limestone. View south of Beaver Creek. The highest (No. 1) bench, corresponding to the Flaxville Plain, before its destruction headed at the top of the limestone wall, about 300 feet higher than No. 2 bench. Blaine County, Montana. July 24, 1921. Plate 23-A, U.S. Geological Survey Professional paper 174. 1932.


map background search result map search result map Engineering-geologic map of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska Reconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska USGS 1:31680-scale Quadrangle for Beaver Creek, TX 1920 USGS 1:31680-scale Quadrangle for Beaver Creek, TX 1920 USGS 1:24000-scale Quadrangle for Beaver Creek, WY 1953 USGS 1:24000-scale Quadrangle for Beaver Creek, WY 1953 USGS 1:24000-scale Quadrangle for Beaver Creek, WY 1953 USGS 1:24000-scale Quadrangle for Beaver Creek, NV 1970 USGS 1:24000-scale Quadrangle for Beaver Creek, IL 1974 USGS 1:24000-scale Quadrangle for Beaver Creek, ID 1986 USGS 1:24000-scale Quadrangle for Beaver Creek, TX 1917 USGS 1:48000-scale Quadrangle for Beaver Creek, TN 1935 Geochemical reanalysis of rock and sediment samples from the Lower Middle Fork of the Salmon River collected as part of the Idaho Primitive Area Studies in the 1960’s through 1980’s Water chemistry data from the Big Creek and Monumental Creek tributaries of the Lower Middle Fork Salmon River, Idaho, 2021 Central Alaska Cosmogenic Isotope Burial Age Data Collected 2020-2022 USGS 1:48000-scale Quadrangle for Beaver Creek, TN 1935 White Mountains Airborne Magnetic and Radiometric Geophysical Survey Kuskokwim Airborne Magnetic and Radiometric Survey, Sischu Mountains USGS 1:31680-scale Quadrangle for Beaver Creek, TX 1920 USGS 1:31680-scale Quadrangle for Beaver Creek, TX 1920 USGS 1:24000-scale Quadrangle for Beaver Creek, WY 1953 USGS 1:24000-scale Quadrangle for Beaver Creek, WY 1953 USGS 1:24000-scale Quadrangle for Beaver Creek, WY 1953 USGS 1:24000-scale Quadrangle for Beaver Creek, NV 1970 USGS 1:24000-scale Quadrangle for Beaver Creek, IL 1974 USGS 1:24000-scale Quadrangle for Beaver Creek, ID 1986 USGS 1:24000-scale Quadrangle for Beaver Creek, TX 1917 Geochemical reanalysis of rock and sediment samples from the Lower Middle Fork of the Salmon River collected as part of the Idaho Primitive Area Studies in the 1960’s through 1980’s Reconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska Kuskokwim Airborne Magnetic and Radiometric Survey, Sischu Mountains White Mountains Airborne Magnetic and Radiometric Geophysical Survey Central Alaska Cosmogenic Isotope Burial Age Data Collected 2020-2022 Engineering-geologic map of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska