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Devils Tower National Monument, Wyoming. Polygonal jointing. June 1951.
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Valley near Devils Tower, Wyoming, just east of the Tower. Crook County, Wyoming. July 1950.
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The National Park Service (NPS), in conjunction with the Biological Resources Division (BRD) of the U.S. Geological Survey (USGS), has implemented a program to "develop a uniform hierarchical vegetation methodology" at a national level. The program will also create a geographic information system (GIS) database for the parks under its management. The purpose of the data is to document the state of vegetation within the NPS service area during the 1990's, thereby providing a baseline study for further analysis at the Regional or Service-wide level. The vegetation at Devils Tower National Monument was mapped using 1:16,000 scale U.S. Forest Service Color Aerial Photography acquired July 29, 1993. The mapping classification...
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Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks collected as part of the Dragonfly Mercury Project (DMP). First posted - September 14, 2018 Revised - October 18, 2019, ver. 2.0 Revised - February 4, 2020, ver. 3.0 Revised - October 28, 2020, ver. 4.0
Categories: Data; Tags: Acadia National Park, Allegheny Portage Railroad National Historic Site, Apostle Islands National Lakeshore, Appomattox Court House National Historical Park, Battle Creek Cypress Swamp, All tags...
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Devils Tower National Monument, Wyoming. Cross section of column, showing polygonal jointing. June 19, 1951.
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Devils Tower National Monument, Wyoming. Horse-drawn wa:gon and men fording Belle Fourche River, 2 miles above Devils Tower. The tower is barely visible in the background. 1908.
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Regularly bedded layers of St. Peter sandstone at northern end of Cap Au Gres, NE 1/4 sec. 30, T. 12 S., R. 2 W. Calhoun County, Illinois. Circa 1928. Plate 3-C, in U.S.Geological Survey Professional paper 218. 1952.
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Specimen: Thinly laminated siltstone in Hannibal shale: NE 1/4 NE 1/4 sec. 1, T. 10 S, R. 3 W. Enlarged twice. Calhoun County, Illinois. Circa 1928. Plate 7-B, in U.S.Geological Survey Professional paper 218. 1952.
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Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae as biosentinels through a citizen science framework.
Categories: Data; Tags: Acadia National Park, Allegheny Portage Railroad National Historic Site, Apostle Islands National Lakeshore, Appomattox Court House National Historical Park, Aquatic Biology, All tags...
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Devils Tower National Monument, Wyoming. Devils Tower, viewed from the opposite side of Belle Fourche River. Man on horseback in the lower right. Circa 1885.
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Exposure of St. Peter sandstone along Mississippi River in Cap Au Gres, view northward from near Dogtown Landing in SW 1/4 sec. 29, T. 12 S., R. 2 W. Calhoun County, Illinois. Circa 1928. Plate 3-A, in U.S.Geological Survey Professional paper 218. 1952.
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Album caption and index card: Devils Tower National Monument. Crook County, Wyoming. 1954. Handwritten note on album caption: Published Figure 53-B in U.S. Geological Survey Bulletin 1021-I. 1956.
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Overturned beds along Cap Au Gres flexure, Cedar Valley limestone and Hannibal shale at right, Chouteau limestone in center and at left, SW 1/4 SE 1/4 sec. 11, T. 6 N., R. 13 W. Jersey County, Illinois. Circa 1928. Plate 7-C, in U.S.Geological Survey Professional paper 218. 1952.
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Devils Tower National Monument, Wyoming. Devils Tower, viewed from the east. Note the columnar jointing and flare at the base. September 1932.
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Devils Tower National Monument, Wyoming, columnar structure from very close to the base. 1953.
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Devils Tower National Monument, Wyoming. Columnar jointing of Devils Tower on the west side. Note the weathering and jointing cracks in the upper one-fifth of the tower and curvature of the jointing at the base. September 1932.
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Brassfield limestone, lying unconformably upon Edgewood limestone, SW 1/4 SW 1/4 sec. 18, T. 10 S. R.2 W. Calhoun County, Illinois. Circa 1928. Plate 6-B, in U.S.Geological Survey Professional paper 218. 1952.


map background search result map search result map Devils Tower National Monument. Crook County, Wyoming. 1954. Devils Tower National Monument Vegetation Mapping Project - Spatial Vegetation Data Total Mercury Concentrations in Dragonfly Larvae from U.S. National Parks Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018 Devils Tower National Monument Vegetation Mapping Project - Spatial Vegetation Data Devils Tower National Monument. Crook County, Wyoming. 1954. Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018 Total Mercury Concentrations in Dragonfly Larvae from U.S. National Parks