Scientific data near [45.38853,-109.96218]

Search area extends approximately 2.2 km east-west and 3.2 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Sweet Grass	county
Montana	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Meyer Mountain	quadrangle 1:24,000 scale
Red Lodge	quadrangle 1:100,000 scale
Billings	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
Stillwater	hydrologic unit
Upper Yellowstone	hydrologic accounting unit
Upper Yellowstone	hydrologic subregion
Missouri	hydrologic region
Areas administered by US Federal agencies

Geology of US states

Digital geologic maps of the US states with consistent lithology, age, GIS database structure, and format

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Unit	State	Lithology
Quartzofeldspathic gneiss	MT	Archean
Stillwater complex	MT	Archean

Airborne geophysical surveys

Aerial surveys of magnetic anomaly and gamma ray emission; older surveys were analog record which have been digitized, newer surveys collected data in digital form.

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ID	Data type	Description
Beartooth	M-Dz	Beartooth 1749 line km with spacing 1.60 km over parts of MT
Stillwater 2000	M/EM-D	Stillwater 2000 1914 line km with spacing 0.20 km over parts of MT
Billings	M/R-D	Billings 4581 line km with spacing 4.80 km over parts of MT-WY

The continental crust

Seventy-seven major components of the North American continent were delineated at a general scale (1:5,000,000); including the general composition, geological environment, and types of primary metals endowments that can be expected in each domain.

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Domain	Crust type	Region
Wyoming	Sialic protocontinent	Northern Rocky Mountains

National geochemical survey database

National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km.

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Sample ID	Material	Source
D-395852	Sediment	Stream, Wet

Geochemistry of stream sediments in the US from the NURE-HSSR database

National-scale geochemical analysis of stream sediments and soils in the US collected and analyzed under the National Uranium Resource Evaluation program.

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Sample ID	Date collected	Sample type
5014219	1978-08-23	Wet spring sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
5014220	1978-08-23	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.

Geochemistry of water samples in the US from the NURE-HSSR database

National-scale geochemical analysis of water samples in the US collected and analyzed under the National Uranium Resource Evaluation program.

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Sample ID	Date collected	Sample type
1010041	1978-08-23	Spring water sample filtered through a 0.45 micron membrane filter and acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
1010042	1978-08-23	Stream water sample filtered through a 0.45 micron membrane filter and acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.

Mineral Resource Data System

MRDS describes metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic characteristics, production, reserves, resources, and references.

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Site name	Development	Commodities
Bluebird Ni-Cu	Occurrence	NI CU CO PGE_PT PGE_PD PGE AG AU
Bluebird	Occurrence	CR PGE_PT PGE_PD PGE_RH
Bluebird Cr-Pt	Occurrence	PGE_PT CR CU NI
Bluebird	Occurrence	CR PGE_PT

An index to PGE-Ni-Cr deposits and occurrences in selected mineral-occurrence databases (web-accessible database)

A compendium of references to previously published databases and database records that describe PGE, nickel, and chromium deposits and occurrences. These data show where to obtain more detailed information about each deposit or occurrence.

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Deposit name	Deposit type	Location
Bluebird	Occurrence	Montana, United States
Bluebird Cr-Pt	Occurrence	Montana, United States
Bluebird	Occurrence	Montana, United States
Bluebird Ni-Cu	Occurrence	Montana, United States
West Fork East Adit	Occurrence	Montana, United States

National Geochemical Database: Sediment

Geochemical analysis of sediment samples from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are of stream sediment in the continental US and Alaska.

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Sample ID	Sample source	Sample notes
D395516	stream/river	-80 mesh stream sediment; stream
D395852	stream/river	-80 mesh NURE stream sediment; stream

National Geochemical Database: Concentrate

Geochemistry of concentrates from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are from the continental US and Alaska.

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Sample ID	Sample source	Sample notes
D395612	surface	heavy-mineral concentrate

Global assessment of undiscovered copper resources

Deposits, prospects, and permissive tracts for porphyry and sediment-hosted copper resources worldwide, with estimates of undiscovered copper resources.

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Tract name	Deposit type	Geology
Northern Rocky Mountains	porphyry copper	Part of a continental margin arc that formed along the western margin of North America
Pacific Margin	porphyry copper	Cretaceous through middle Tertiary volcanic and intrusive rocks representing a series of continental- and island-arc systems accreted and superimposed onto the paleomargin of northeast Asia.