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USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
AL,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
AL,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Helena, All tags...
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
TX,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Advance,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
MI,
Map,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 1 x 2 degree,
AR,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 1 x 2 Degree Map Series,
Map,
imageryBaseMapsEarthCover, Fewer tags
This data release provides digital flight line data for a high-resolution airborne radiometric survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041 line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km2. Data were collected from a helicopter flown at a nominal terrain clearance of 100 meters (m) above topography along E-W flight lines spaced at 200 m intervals. Tie lines were flown in an N-S...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: AASG,
Aeroradiometric survey,
Airborne geophysical survey,
Association of State Geologists,
Boulder Mountains, All tags...
Boulder River,
Broadwater County,
Butte,
Crow Creek,
Deerlodge National Forest,
Earth Mapping Resources Initiative,
EarthMRI,
Economic Geology,
Elkhorn Mountains,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Geophysics,
Geospatial datasets,
Helena,
Helena National Forest,
Jefferson County,
Lewis and Clark County,
Little Blackfoot River,
MRP,
Mineral Resources,
Mineral Resources Program,
Montana,
National Cooperative Geologic Mapping Program,
Potassium,
Powell County,
Prickly Pear Creek,
Sedimentology,
Structural Geology,
Thorium,
Twin Bridges,
U.S. Geological Survey,
USA,
USGS,
United States,
United States of America,
Uranium,
Whitetail Valley,
biota, Fewer tags
A mineral resource assessment was performed by the U.S. Geological Survey (USGS) to assess the potential of undiscovered skarn-hosted tungsten resources in the Northern Rocky Mountain region of eastern Idaho and western Montana. This region has seen moderate tungsten trioxide (WO3) production in the past from a variety of mineralization styles including skarn, vein and replacement, and wolframite-quartz veins. The geology of the area is dominated by large plutons of Cretaceous to Tertiary age, emplaced into a belt of sedimentary rock ranging from Mesoproterozoic to Permian age, and affected by tectonism related to the Sevier and later Laramide orogenies. Known tungsten (W) skarn mineral sites are associated with...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Ashton,
Bald Mountain,
Beaverhead County,
Bitterroot Range,
Boise County, All tags...
Bozeman,
Broadwater County,
Butte,
Challis,
Choteau,
Cretaceous,
Custer County,
Deer Lodge County,
Dillon,
Dubois,
Elk City,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Granite County,
Great Falls,
Hamilton,
Helena,
Idaho,
Idaho County,
Jefferson County,
Lewis and Clark County,
Little Belt Mountains,
MRP,
Madison County,
Mesoproterozoic,
Mineral Resources Program,
Montana,
Northern Rocky Mountains,
Paleozoic,
Pioneer Mountains,
Powell County,
Ravali County,
Rocky Mountain,
Silver Bow County,
Tertiary,
Thompson Creek,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
United States,
Valley County,
Wallace,
White Sulphur Spring,
Yellow Pine,
economic geology,
economy,
geochemistry,
geophysics,
geoscientificInformation,
idaho,
igneous rocks,
metallic mineral resources,
mineral assessment,
mineral assessment,
mineral deposits,
mineral resources,
montana,
plutonic rocks,
rocks and deposits,
sedimentary rocks,
tungsten,
tungsten, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
AL,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Helena, All tags...
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
TX,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Helena, All tags...
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
OK,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
CA,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
Provisional,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
AL,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 30 x 60 minute,
AR,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 30 x 60 Minute Map Series,
Map,
Planimetric,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 1 x 2 degree,
AR,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 1 x 2 Degree Map Series,
Map,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 1 x 2 degree,
AR,
Downloadable Data,
GeoPDF,
GeoTIFF, All tags...
Helena,
Historical Topographic Maps,
Historical Topographic Maps 1 x 2 Degree Map Series,
Map,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 1 x 1 degree,
Downloadable Data,
GeoPDF,
GeoTIFF,
Helena, All tags...
Historical Topographic Maps,
Historical Topographic Maps 1 x 1 Degree Map Series,
MT,
Map,
imageryBaseMapsEarthCover, Fewer tags
This data release provides digital flight line data for a high-resolution airborne magnetic survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041-line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km2. Data were collected from a helicopter flown at a nominal terrain clearance of 100 meters (m) above topography along E-W flight lines spaced at 200 m intervals. Tie lines were flown in an N-S direction...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: AASG,
Aeromagnetic survey,
Airborne geophysical survey,
Association of State Geologists,
Boulder Mountains, All tags...
Boulder River,
Broadwater County,
Butte,
Crow Creek,
Earth Mapping Resources Initiative,
EarthMRI,
Economic Geology,
Economy,
Elkhorn Mountains,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Geophysics,
GeoscientificInformation,
Geospatial datasets,
Helena,
Jefferson County,
Lewis and Clark County,
Little Blackfoot River,
MRP,
Magnetic field (earth),
Mineral Resources,
Mineral Resources Program,
Montana,
Montana,
National Cooperative Geologic Mapping Program,
Powell County,
Prickly Pear Creek,
Sedimentology,
Structural Geology,
Twin Bridges,
U.S. Geological Survey,
USA,
USGS,
United States,
United States of America,
Whitetail Valley, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 7.5 x 7.5 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Helena, All tags...
Historical Topographic Maps,
Historical Topographic Maps 7.5 x 7.5 Minute Map Series,
Map,
TX,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 1 x 1 degree,
Downloadable Data,
GeoPDF,
GeoTIFF,
Helena, All tags...
Historical Topographic Maps,
Historical Topographic Maps 1 x 1 Degree Map Series,
MT,
Map,
imageryBaseMapsEarthCover, Fewer tags
USGS Historical Quadrangle in GeoPDF.
Tags: 15 x 15 minute,
Downloadable Data,
GeoPDF,
GeoTIFF,
Helena, All tags...
Historical Topographic Maps,
Historical Topographic Maps 15 x 15 Minute Map Series,
MT,
Map,
imageryBaseMapsEarthCover, Fewer tags
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