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This digital map shows the areal extent of surficial deposits and rock stratigraphic units (formations) as compiled by Trimble and Machette from 1973 to 1977 and published in 1979 under the Front Range Urban Corridor Geology Program. Trimble and Machette compiled their geologic map from published geologic maps and unpublished geologic mapping having varied map unit schemes. A convenient feature of the compiled map is its uniform classification of geologic units that mostly matches those of companion maps to the north (USGS I-855-G) and to the south (USGS I-857-F). Published as a color paper map, the Trimble and Machette map was intended for land-use planning in the Front Range Urban Corridor. This map recently (1997-1999)...
Tags: Adams County,
Arapahoe County,
Arapahoe Formation,
Colorado,
Colorado Front Range, All tags...
Colorado Piedmont,
Cretaceous rocks,
Dawson Formation,
Denver,
Denver County,
Denver Creek granodiorite,
Denver Formation,
Douglas County,
Economic Geology,
Elbert County,
Front Range Urban Corridor,
GeMS,
Geography,
Geologic Map Schema,
Geologic map,
Glaciology,
Golden,
Golden Fault,
Jefferson County,
Land Use Change,
Mineral Resources,
NCGMP,
NGS,
National Cooperative Geologic Mapping Program,
National Geologic Synthesis Project,
Oligocene bedrock,
Paleocene bedrock,
Paleozoic rocks,
Pierre Shale,
Precambrian rocks,
Quaternary deposits,
Silver Plume quartz monzonite,
Stratigraphy,
Structural Geology,
US GeoFramework Initiative,
USA,
USGI,
USGS Science Data Catalog (SDC),
United States of America,
Wall Mountain Tuff,
aggregate,
alluvial gravel,
eolian sand,
geologic hazard,
land-use planning,
landslide deposit,
mine subsidence,
urban growth,
urban zoning,
windblown sand, Fewer tags
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The Homestake Reservoir 7.5' quadrangle lies at the northwestern end of the Upper Arkansas Valley, and headwaters of the Arkansas River, and the Roaring Fork, Fryingpan, and Eagle Rivers of the Colorado River system. The quadrangle lies within tectonic provinces of the 1.4 Ga Picuris Orogeny, the late Paleozoic Ancestral Rockies, Late Cretaceous-Paleocene Laramide orogeny, Oligocene to Miocene, and Pliocene?, volcanism, and Miocene to the present Rio Grande rift extensional tectonics. In the eastern half of the quadrangle, high-angle, east-dipping, Neogene normal faults displace Proterozoic rocks, and locally Mio-Pliocene? volcanic rocks. Many quartz veins and hydrothermally altered zones are exposed along the eastern...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: 10Be, 26Al,
10th Mountain Division Hut,
Bald Eagle Mountain,
Bear Lake,
Brady Lake, All tags...
Bull Lake glaciation,
Busk Creek,
Camp Hale,
Carlton Tunnel,
Colorado,
Colorado River,
Eagle County,
Eagle River,
Economic Geology,
Galena Lake,
Galena Mountain,
Geomorphology,
Glaciology,
Hagerman Pass,
Hagerman Tunnel,
Homestake Creek,
Homestake Peak,
Homestake Reservoir,
Homestake shear zone,
Hydrology,
Isolation Lake,
Lake County,
Lake Esther,
Laramide,
Leadville,
Leadville Mining District,
Leadville Quadrangle,
Lincoln Porphyry,
Longs Gulch,
Mill Creek,
Mineral Resources,
Miocene volcanics,
Mount Massive Wilderness,
Mount of the Holy Cross Wilderness,
Oligocene volcanics,
Paradise Lakes,
Pinedale Glaciation,
Pitkin County,
Pliocene volcanics,
Porcupine Gulch,
Rio Grande rift,
San Isabel National Forest,
Sawatch Range,
Sawatch anticlinorium,
Slide Lake,
Soil Sciences,
Sopris Creek,
South Park,
St. Kevin Granite,
St. Kevin Mining District,
Structural Geology,
Tennessee Creek,
Tennessee Park,
Tennessee Pass,
Timberline Lake,
Turquoise Lake,
USA,
USGS Science Data Catalog (SDC),
Uncle Bud’s Cabin,
United States,
Upper Arkansas River,
Upper Arkansas Valley,
Water Resources,
White River National Forest,
cosmogenic nuclide,
landslides,
metalamprophyre,
neotectonics,
pre-Bull Lake glaciation,
pseudotachylite,
sakungen, Fewer tags
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This Scientific Data Release is a spatial geodatabase representation of Braun, D. D., 1996, Surficial geology of the Allentown 30x60-minute quadrangle: Pennsylvania Geological Survey, 4th ser., Open-File Report 96–48, 17 p., 1 map, scale 1:100,000. These geospatial data depict surficial geologic materials in the Pennsylvania portion of the Allentown 30 x 60-minute quadrangle in eastern Pennsylvania.The map area shows the effects of at least three Pleistocene glacial advances. The report map is a compilation and revision of published and unpublished, 1:24,000-scale, detailed-reconnaissance maps. Types of surficial geologic units include 14 anthropogenic, 8 alluvial or wetland, 16 colluvial, and 12 Wisconsinan, Illinoian,...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Allentown Quadrangle,
Berks County,
Bucks County,
Carbon County,
Economic Geology, All tags...
Geomorphology,
Glaciology,
Illinoian Glaciation,
Lehigh County,
Luzerne County,
Monroe County,
Northampton County,
Pennsylvania,
Pre-Illinoian Glaciation,
Schuylkill County,
USA,
USGS Science Data Catalog (SDC),
United States,
Wisconsinan Glaciation,
economy,
geology,
surficial geologic units, Fewer tags
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Denali National Park and Preserve (DENA), located in central Alaska, is home to iconic and dynamic landscapes surrounding the tallest mountain range in North America, the Alaska Range. DENA preserves over 6 million acres of wild land that provides opportunities for recreation, subsistence hunting and gathering, preservation of cultural resources, and scientific research. Despite its size and popularity, DENA has only one road—the dead-end, 92-mile Denali National Park Road (hereafter referred to as the Park Road). The Park Road is mostly gravel; only the first 15 miles are paved. It is the only access for most DENA infrastructure, including visitor centers, staff facilities, campgrounds, and businesses. The Park...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Alaska,
Alaska Range,
Browne glaciation,
Cantwell Basin,
Cantwell Formation, All tags...
Climatology,
Denali,
Denali National Park,
Denali National Park,
Denali Park Road,
Denali fault system,
Dry Creek glaciation,
East Fork Toklat River,
Eilson Visitor Center,
Fang Mountain,
Geography,
Geologic Map,
Geomorphology,
Glaciology,
Healy glaciation,
Highway Pass,
Hines Creek,
Hines Creek fault,
Kantishna Hills,
McKinley River,
Mount Galen,
Mount Healy,
Mount Margaret,
Mount Wright,
Muldrow glacier,
Nenana Gravel,
Nenana River,
Park Road fault,
Plains of Murie,
Polychrome Pass,
Pretty Rocks,
Quaternary deposits,
Riley Creek glaciation,
Sable Pass,
Sanctuary River,
Savage River,
Sedimentology,
Seismology,
Stony Pass,
Stratigraphy,
Structural Geology,
Surficial Geology,
Teklanika Formation,
Teklanika River,
Teklanika volcanics,
Toklat River,
USA,
USGS Science Data Catalog (SDC),
United States,
Usibelli Group,
Volcanology,
Wonder Lake,
landslides,
neotectonics,
permafrost, Fewer tags
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This release presents the GIS data (in GDB, shapefile, and e00 [coverage] formats) and metadata for a 1:24,000-scale geologic map of the Poncha Pass area in central Colorado. A cartographic version of the geologic map, including map unit descriptions, interpretative text, and accessory figures and tables, is being separately published as a U.S. Geological Survey Scientific Investigations Map (SIM). The map area is irregular in shape, covering all of one 7.5' quadrangle (Poncha Pass) and parts of five others (Mount Ouray, Maysville, Salida West, Salida East, and Wellsville). The map boundaries were drawn to cover all of the "Poncha mountain block", coincident with the approximately 15-kilometer-long northwestern...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 40Ar/39Ar age,
Arkansas River,
Bear Creek,
Bonanza Tuff,
Bull Lake glaciation, All tags...
Chaffee County,
Cleveland Mountain,
Clover Creek,
Colorado,
Conejos Formation,
Droz Creek,
Dry Union Formation,
Fremont County,
Geomorphology,
Laramide orogeny,
Little Cochetopa Creek,
Mears Junction,
Methodist Mountain,
Mineral Resources,
Mount Ouray,
Murphys Hole,
O’Haver Lake,
Pinedale Glaciation,
Poncha Creek,
Poncha Mountain,
Poncha Pass,
Poncha Springs,
Rio Grande rift,
Round Hill,
Saguache County,
Salida,
San Luis Creek,
San Luis Valley,
Sand Gulch,
Sangre de Cristo Mountains,
Sawatch Range,
Silver Creek,
Simmons Peak,
South Arkansas River,
Stratigraphy,
Structural Geology,
U-Pb age,
USA,
USGS Science Data Catalog (SDC),
United States,
Upper Arkansas Valley,
Volcanology,
basement rocks,
basin-fill deposits,
dike,
fault slip,
intrusive rocks,
metamorphic rocks,
mountain block,
normal fault,
oblique-slip fault,
pre-Bull Lake glaciation,
range-front fault,
reverse fault,
sedimentary rocks,
sill,
strike slip,
surficial deposits,
uplift,
volcanic rocks, Fewer tags
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