Scientific data near [38.02080,-108.05970]

Search area extends approximately 2.2 km east-west and 2.8 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
San Miguel	county
Colorado	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Placerville	quadrangle 1:24,000 scale
Nucla	quadrangle 1:100,000 scale
Moab	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
San Miguel	hydrologic unit
Upper Colorado-Dolores	hydrologic accounting unit
Upper Colorado-Dolores	hydrologic subregion
Upper Colorado	hydrologic region

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
Morrison, Wanakah, and Entrada Fms	CO	Jurassic
Cutler Fm	CO	Permian
Dolores Fm	CO	Triassic

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
Durango '67	M-A	Durango '67 4441 line km with spacing 1.60 km over parts of CO
Moab	M/R-D	Moab 5001 line km with spacing 4.80 km over parts of UT-CO

Estimates of undiscovered mineral resources

National Mineral Resource Assessment 1998: Estimates of the number of undiscovered mineral resources of gold, silver, copper, lead, and zinc within identified permissive tracts (geographic areas in which mineral deposits may form).

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Tract	Deposit Type	Mineralization age
CR08	Porphyry Cu	Laramide
CR09	Porphyry Cu	Middle Tertiary

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
Great Plains	Lateral-extensional orogen	Central and Southwest

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
5054638	1976-06-28	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
5054639	1976-06-28	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
1041663	1976-06-28	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.
1041664	1976-06-28	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
Rosemary Placer	Past Producer	AU
Wilson and Chambers	Past Producer	AU
Lemon Hot Spring	Producer	GEO
Nuget Nos. 1, 2, 3	Past Producer	U V
Pocahantas	Past Producer	U V
Rare Metals	Past Producer	AU CU PB AG ZN
Grumwald Mine	Past Producer	U V
Bachelor Corp. Mill	Past Producer	PB U ZN
White Crow	Past Producer	U
Guthrie Pit	Past Producer	SDG
Gold Ledge Placer	Past Producer	AU
Crescent City	Past Producer	AU PB AG ZN
Ironside	Occurrence	AU PB AG
Donovan Placer	Past Producer	AU PGE_PT AG
Brazier Plant	Past Producer	SDG
Donegan Placer	Past Producer	AU SDG
Wave Bar	Unknown	AU
E Bar Placer	Unknown	AU
Lower San Miguel District	Past Producer	AG PB AU V CU LST STN_D U MO ZN CR CO

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
Black King Mine	Past Producer	Colorado, United States

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
Eastern Alkaline Province	porphyry copper	A belt of Tertiary alkaline granitic rocks associated with back-arc or postsubduction extension
Tertiary Central Plateau and Rocky Mountains	porphyry copper	Belt of middle Tertiary (Oligocene-Miocene) granitic to intermediate intrusive rocks & volcanics associated w/post-Laramide stage of magmatism in northern Mexico and Mid-Tertiary volcanic fields associated w/post-subduction extension in eastern Rocky Mtns

Prospect- and mine-related features on USGS topographic maps

Symbols indicating mining-related features digitized from historical USGS topographic maps in the western part of the conterminous US. Includes prospect pits, mine shafts and adits, quarries, open-pit mines, tailings piles and ponds, gravel and borrow pit

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Feature ID	Feature type	Feature name
Adit	point
Adit	point