Digital database of the previously published geologic map of the greater Denver area, Front Range Urban Corridor, Colorado

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 Trimble and Machette compiled their geologic map from published geologic maps and unpublished geologic mapping having varied map unit schemes.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

Data release for the Geologic Map of the Denali Park Road Corridor, Denali National Park, Alaska

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

Digital database of the previously published geologic map of the Boulder-Fort Collins-Greeley area, Colorado

This digital map shows the geographic extent of rock stratigraphic units (formations) as compiled by Colton in 1976 under the Front Range Urban Corridor Geology Program. Colton used his own geologic mapping and previously published geologic maps to compile one map having a single classification of geologic units. The resulting published color paper map (USGS Map I-855-G, Colton, 1978) was intended for land-use planning and to depict the regional geology. In 1997-1999, another USGS project designed to address urban growth issues was undertaken. This project, the USGS Front Range Infrastructure Resources Project, undertook to digitize Colton's map at 1:100,000 scale, making it useable in Geographical Information Systems...

Tags: Boulder, Boulder County, Boulder Creek granodiorite, Colorado, Colorado Front Range, All tags... Colorado Piedmont, Cretaceous rocks, Economic Geology, Fort Collins, Front Range Urban Corridor, GeMS, Geography, Geologic Map Schema, Geologic map, Glaciology, Greeley, Jefferson County, Land Use Change, Larimer County, Mineral Resources, NCGMP, NGS, National Cooperative Geologic Mapping Program, National Geologic Synthesis Project, Paleocene and Eocene igneous rocks, Paleozoic rocks, 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, Weld County, aggregate, alluvial gravel, eolian sand, geologic hazard, land-use planning, landslide deposit, mine subsidence, urban growth, urban zoning, Fewer tags

Data release for the geologic map of the upper Arkansas River valley region, north-central Colorado

This 1:50,000-scale geologic map represents a compilation of the most recent geologic studies of the upper Arkansas River valley, between Leadville and Salida, Colorado. The valley is structurally controlled by an extensional fault system that forms part of the prominent northern Rio Grande rift, an intra-continental region of crustal extension. This work also incorporates new detailed geologic mapping of poorly understood areas within the map area and reinterprets previously studied areas, aided by lidar data that covers 59 percent of the map area. The mapped region extends into the Proterozoic metamorphic and intrusive rocks in the Sawatch Range west of the valley and the Mosquito Range to the east. Paleozoic...

Categories: Data; Tags: 207Pb/206Pb zircon age, 40Ar/39Ar age, Arkansas River, Balltown, Balltown placer gold mining areas, All tags... Belle of Granite Mine, Big Union Creek, Bishop ash, Black Cloud Mine, Black Mountain, Browns Canyon, Browns Canyon fluorspar mining district, Browns Creek, Buckskin Gulch, Buena Vista, Buffalo Creek, Buffalo Peaks, Bull Lake glaciation, Cache Creek, California Gulch, California Mine, Centerville, Chaffee County, Chalk Creek, Clear Creek, Clear Creek Reservoir, Colorado, Cottonwood Creek, Dry Union Gulch, Eagle County, Eagle River, East Fork Arkansas River, Eddy Creek, Elephant Rock, Fremont County, Front Range, Garfield, Garfield Mine, Garfield mining district, Gordon Mine, Granite, Granite mining district, Granite placer gold mining areas, Hayden Gulch, Homestake Reservoir, Iowa Gulch, Johnson Village, Lake County, Lake Creek, Langhoff Gulch, Lava Creek B ash, Leadville, Leadville mining district, Lilly Mine, London Mine, Malta, Maysville, Mesozoic rocks, Morrison Creek, Mosquito Range, Mount Aetna, Mount Antero, Mount Antero mining district, Mount Princeton, Mount Shavano, Mount Yale, Paleozoic rocks, Park County, Pine Creek, Pinedale glaciation, Pitkin County, Poncha Springs, Proterozoic rocks, Quaternary deposits, Rio Grande rift, Riverside, Rock Creek, Ruby Mine, Ruby Mountain, San Juan Mountains, Sangre de Cristo Range, Sawatch Range, Sedalia Mine, Sedalia copper-zinc mining district, South Arkansas River, South Park, South Platte River, Squaw Creek, St. Kevin mining district, Structural Geology, Sugar Loaf mining district, Sugarloaf Mountain, Tennessee Creek, Tertiary rocks, Triad Ridge, Trout Creek, Trout Creek Pass, Trout Creek paleovalley, Tumble Creek, Turquoise Lake, Twin Lakes Reservoir, Twin Lakes mining district, Two Bits mining district, USA, USGS Science Data Catalog (SDC), United States, Western Alma mining district, Weston Pass, Weston Pass mining district, Yankee Blade Mine, alluvial deposits, alluvium, andesite, artificial-fill deposits, augen gneiss, basalt, basin-fill deposits, breccia, colluvium, copper, cosmogenic surface-exposure age, dacite, debris flow, debris-flow deposits, diamicton, diorite, eolian deposits, fan deposits, fault, faulting, fluorspar, fluvial deposits, gabbro, glacial deposits, glacial flood deposits, glacial flood gravel, glaciofluvial deposits, gneiss, gold, graben, granite, granitic gneiss, granodiorite, gravel, hydrologic hazards, hypabyssal rhyolite, intrusive rock, lahar deposit, lamprophyre, landslide deposits, latite, lava, lead, leucogranite, leucogranite gneiss, lidar imagery, man-made deposits, mass-movement deposits, mass-movement hazards, metabasalt, metagabbro, metaigneous rocks, metasedimentary rocks, metavolcanic rocks, microtonalite, mine, mine-waste deposits, mineral deposits, mining district, monzodiorite, monzogranite, monzonite, mud-flow deposits, neotectonics, ore, outwash, outwash gravel, peat deposits, pegmatite, periglacial, placer gold, placer-tailings deposits, porphyry, pre-Bull Lake glaciation, quartz diorite, quartz latite, quartzite, rhyodacite, rhyolite, rift, rock-glacier deposits, sackungen, sand and gravel resources, scarp, schist, sedimentary rocks, seismic hazards, silver, smelter-slag deposits, soil, surficial deposits, talus deposits, till, tuff, volcanic ash, volcanic breccia, volcanic rock, weathering, wetland deposits, zinc, Fewer tags

Data release for geologic map of the Fort Collins 30' x 60' quadrangle, Larimer and Jackson Counties, Colorado and Albany and Laramie Counties, Wyoming

This geologic map provides new and compiled geologic mapping at 1:100,000-scale in the Fort Collins 30' x 60' quadrangle covering the northern Front Range and adjacent areas of Colorado.

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Albany County, Anasazi uplift, Ancestral Rocky Mountain uplift, Bellvue, Bellvue fault, All tags... Berthoud Plutonic Suite, Big Narrows, Blue Lake fault, Boston Peak fault, Boulder Creek granodiorite, Box Prairie, Boxelder Creek, Braddock Peak volcanic complex, Buckeye, Buckhorn Creek, Buckhorn Creek fault, Bull Lake glaciation, Bull Mountain fault, Cache la Poudre River, Cameron Pass fault, Campbell Mountain fault, Canadian River, Cenozoic rocks, Chambers Lake, Colorado, Colorado Piedmont, Cornelius Creek shear zone, Cretaceous Western Interior Seaway, Dakota Sandstone, Denver basin, Dilky Ranch fault, Douglas Reservoir, East Jimmy Creek fault, Eggers, Elephant Mountain fault, Elkhorn Creek shear zone, Fletcher Hill fault, Foothill hogbacks, Fort Collins, Front Range, Front Range uplift, Geologic map, Glen Echo, Glendevey, Granite of Hagues Peak, Grassy Pass fault, Green Ridge fault, Halligan Reservoir, Halligan Reservoir fault, Hewlett fault, Horsetooth reservoir, Idylwilde, Indian Meadows, Iron Dike, Jackson County, Joe Wright Reservoir, Kelly Lake fault, Kinikinik, Laporte, Laramide orogeny, Laramie County, Laramie Mountains, Laramie River, Laramie basin, Larimer County, Lindenmeier Lake, Livermore, Livermore fault, Log Cabin batholith, Long Draw Reservoir, Long Pond, Longs Peak batholith, McIntyre Creek fault, Medicine Bow Mountains, Mesoproterozoic rocks, Mesozoic rocks, Michigan River, Mill Creek fault zone, Mishawaka, Mummy Range, Never Summer Mountains, Never Summer thrust fault, Never Summer volcanic complex, Niobrara Formation, North Fork fault, North Livermore fault, North Middle Mountain thrust fault, North Park basin, Paleoproterozoic rocks, Paleozoic rocks, Panhandle Creek shear zone, Park Creek Reservoir, Phanerozoic rocks, Pinedale glaciation, Poudre Falls, Poudre Park, Poudre River shear zone, Proterozoic rocks, Quaternary deposits, Rawah batholith, Red Feather Lakes, Red Feather Lakes shear zone, Redstone Creek fault, Rist Canyon fault, Rocky Mountain erosion surface, Roosevelt National Forest, Round Butte fault, Routt Plutonic Suite, Rustic, Sand Creek, Seaman Reservoir, Sheep Creek fault zone, Shell Creek fault, Sherman Granite, Sherman surface, Shipman Park fault, Silver Plume granite, Skin Gulch shear zone, Stateline kimberlite district, Stink Creek fault, Stove Prairie, Stove Prairie fault, Teds Place, Terry Lake, Thompson Canyon fault, USA, USGS Science Data Catalog (SDC), United States of America, Virginia Dale, Virginia Dale ring-dike complex, Wellington, West Jimmy Creek fault, West Livermore fault, Windsor Reservoir, Wyoming, high-level gravel, post-Pinedale glaciation, Fewer tags