Scientific data near [41.70000,-123.04000]

Search area extends approximately 8.9 km east-west and 11.9 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Siskiyou	county
California	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Scott Bar	quadrangle 1:24,000 scale
Happy Camp	quadrangle 1:100,000 scale
Weed	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
Scott	hydrologic unit
Klamath	hydrologic accounting unit
Klamath-Northern California Coastal	hydrologic subregion
California	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
Mesozoic gabbroic rocks, unit 2 (undivided)	CA	Triassic to Cretaceous
Mesozoic granitic rocks, unit 5 (Klamath Mountains)	CA	Jurassic to early Cretaceous
Undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided)	CA	Paleozoic(?) to Mesozoic(?)
Paleozoic marine rocks, undivided, unit 9 (Western Klamath Mountains)	CA	Devonian to Jurassic
Schist of various types and ages, unit 8 (Condrey Mountain)	CA	Jurassic(?)
Ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains)	CA	Late Proterozoic(?) to Early Jurassic

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
Marble Mountains	M-D	Marble Mountains 1697 line km with spacing 0.80 km over parts of CA
Weed	M/R-D	Weed 2660 line km with spacing 9.60 km over parts of CA

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
PC03	Skarn Cu	Mesozoic
PC08	Porphyry Cu	Mesozoic
PC10	Massive sulfide, Cyprus	Jurassic
PC10	Massive sulfide, Cyprus	Jurassic
PC14	Massive sulfide, Sierran kuroko	Jurassic
PC40	Low-sulfide Au-quartz vein	Mesozoic

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
Foothills-Wallowa	Oceanic arc	Western Cordillera
Calaveras-Baker	Accretionary wedge	Western Cordillera

Podiform chromite deposits

Location and characteristics of 1,124 individual mineral deposits of this type, with grade and tonnage models for chromium as well as several related elements.

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Record	Type	Comment
Veta Chica
Cerro Colorado
Veta Grande
Mary Lou
Lady Gray
Grand Falls-Grand Canyon

National Geochemical Database: Rock

Geochemical analysis of rock samples collected and analyzed by the USGS. This dataset includes and supersedes rock data formerly released as "Geochemistry of igneous rocks in the US extracted from the PLUTO database"

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Sample ID	Rock type	Rock name
D239711	igneous	unknown
M156079	igneous	pegmatite
M156080	metamorphic

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
Mcguffy Creek Deposit	Past Producer	CR
Mary Lou Claim	Past Producer	CR FE
Lady Gray Claim	Past Producer	CR FE
Veta Chica	Unknown	CR
Jacobs and Mccarthy	Unknown	AU
Enterprise	Unknown	AU
Black Spot	Unknown	CR
Robinson Mine	Unknown	AU
Chrome Cliff	Occurrence	CR
Wooliver Bar Mine	Unknown	AU
Quartz Hill Mine	Occurrence	AU BI
Courts and Smith Mine	Unknown	AU
Mcguffy Creek Mine	Producer	CR
Unnamed Prospect	Occurrence	GRF
Veta Grande	Unknown	CR
North Pole	Occurrence	CR
Rocky Point	Past Producer	AU AG
Gold King	Past Producer	AU AG
Gray Claims	Occurrence	CR
Grand Canyon	Occurrence	CR
Crawford Mine	Unknown	AU
Grand Forks Limestone	Occurrence	CR
Piedras Claim	Occurrence	CR
Saleratus	Occurrence	CR
Reported Occurrence	Unknown	AU
Rustless Mng Corp	Occurrence	CR
Unidentified Deposit	Occurrence	CR
Cerro Colorado	Past Producer	CR
Blue Hill Placer	Unknown	AU

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
Veta Grande	unclassified	California, United States
Mcguffy Creek Mine	Producer	California, United States
Mary Lou Claim	Past Producer	California, United States
Black Spot	unclassified	California, United States
Veta Chica	unclassified	California, United States
Lady Gray Claim	Past Producer	California, United States
Cerro Colorado	Past Producer	California, United States
Mcguffy Creek Deposit	Past Producer	California, United States
Grand Forks Limestone	Occurrence	California, United States
Piedras Claim	Occurrence	California, United States
Rustless Mng Corp	Occurrence	California, United States
Saleratus	Occurrence	California, United States
Grand Canyon	Occurrence	California, United States
Chrome Cliff	Occurrence	California, United States
Unidentified Deposit	Occurrence	California, United States
North Pole	Occurrence	California, United States
Gray Claims	Occurrence	California, 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
Cascade Arc	porphyry copper	U.S. part of a continental margin arc that formed during subduction of the Pacific and Juan de Fuca plates beneath western North America
Western U.S. and Sonoran Desert Jurassic Arc	porphyry copper	U.S. and Mexican parts of a composite island-continental margin arc that formed during subduction of the Farallon Plate beneath western North America

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
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Prospect Pit	point
Adit	point
Adit	point	Tunnel
Adit	point
Adit	point	Tunnel
Mine Dump	polygon

Critical mineral deposits of the United States

Mineral deposit information drawn from USGS databases, industry reports, and scientific literature totalling 681 individual mineral deposits documented to contain critical minerals. Data are provided in Esri file geodatabase, Microsoft Excel, shapefile, and CSV formats.

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Deposit name	Deposit type	Critical minerals
McGuffy Creek group	Chromite	chromium