Scientific data near [62.78944,-144.02777]

Search area extends approximately 8.9 km east-west and 19.5 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Valdez-Cordova	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Gulkana D-1	1:63,360 Alaska quadrangle
Gulkana	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Upper Copper River	hydrologic unit
190201	hydrologic accounting unit
Northwest Alaska	hydrologic subregion
Alaska	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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Map symbol	Lithology	Unit name
PIPgi	Igneous - Plutonic	Granodiorite, syenite, and other granitic rocks
PIPgi	Igneous - Plutonic	Granodiorite, syenite, and other granitic rocks
PIPgi	Igneous - Plutonic	Granodiorite, syenite, and other granitic rocks
PIPgi	Igneous - Plutonic	Granodiorite, syenite, and other granitic rocks
PIPt	Sedimentary	Slana Spur and Station Creek Formations and Tetelna Volcanics
PIPt	Sedimentary	Slana Spur and Station Creek Formations and Tetelna Volcanics
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided

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
East Alaska Range	M-Dz	East Alaska Range 43452 line km with spacing 1.20 km over parts of AK
East Alaska Range	M-Dz	East Alaska Range 43452 line km with spacing 1.20 km over parts of AK
East Alaska Range - Nabesna	M-Dz	East Alaska Range - Nabesna 43452 line km with spacing 1.20 km over parts of AK
Nabesna	M/R-D	Nabesna 2204 line km with spacing 9.60 km over parts of AK
Slate Cr-Slana River	M/EM-D	Slate Cr-Slana River -9999 line km with spacing 0.40 km over parts of AK

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
AK-SC05	Cu-Ag quartz veins
AK-SC16	Kuroko massive sulfide
AK-SC23	Porphyry Cu, BC-Ak type
AK-SC33	Cu (Au) skarn
AK-SC21	Porphyry Cu, BC-Ak type
AK-SC28	Polymetallic vein
AK-SC25	Placer Au
AK-SC32	Cu (Au) skarn
AK-SC01	Basaltic Cu/Kennecott Cu
AK-SC18	Synorogenic-synvolcanic Ni-Cu
AK-SC09	Low-sulfide Au-quartz veins
AK-SC22	Porphyry Cu, BC-Ak type

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
Wrangellia	Oceanic arc	Alaska

Alaska Geochemical Database, Version 2.0 (AGDB2)--including "best value" data compilations for rock, sediment, soil, mineral, and concentrate sample media

Geochemical analyses of rocks, mineral separates, bulk samples from lake and stream sediments, heavy mineral concentrates, and soils collected by USGS from 1962 to 2009.

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Lab ID	Sample medium	Description
ACH594	sediment
ACH595	sediment
ACH606	sediment
ACH607	sediment
ACH656	sediment
ACH657	sediment
ACH659	sediment
ACH663	sediment
ACH664	sediment
ACH670	rock	sedimentary siltstone
ACH671	rock	igneous intermediate
ACH672	rock	igneous intermediate
ACH673	rock	igneous intermediate
ACH674	rock	igneous intermediate
ACH675	rock	igneous intermediate
ACH676	rock	metamorphic skarn
ACH677	rock	igneous felsic
ACH678	rock	igneous intermediate
ACH679	rock	igneous intermediate
ACH680	rock	metamorphic skarn
ACH681	rock	igneous intermediate
ACH699	rock	metamorphic skarn
ACH700	rock	metamorphic skarn
ACH701	rock	metamorphic skarn
ACH703	rock	igneous intermediate
ACH704	rock	igneous intermediate
ACH716	rock	igneous intermediate
ACH719	rock	igneous intermediate
ACH721	rock	igneous intermediate
ACH722	rock	igneous intermediate
ACH723	rock	igneous intermediate
ACH724	rock	igneous intermediate
ACH725	rock	igneous intermediate
ACH739	rock	igneous intermediate
ACH740	rock	igneous intermediate
ACH741	rock	igneous felsic
ACH743	rock	igneous intermediate
CDP465	sediment
CDP468	sediment
CDP470	sediment
CDP473	sediment
CDP474	sediment
CDP486	sediment
CDP610	rock	metamorphic jasperoid
CDP611	rock	sedimentary carbonate
CDP612	rock	igneous intermediate
CDP615	rock	metamorphic unspecified
CDP616	rock	metamorphic metamudstone
CDP617	rock	igneous granodiorite
CDP618	rock	metamorphic schist
CDP619	rock	metamorphic amphibolite
CDP626	rock
CGB001	rock	igneous quartz monzonite
CGB002	rock	igneous granodiorite
CGB003	rock	metamorphic schist
CGB004	rock	igneous porphyry
CGB041	rock	metamorphic metavolcanic
CGB068	rock	metamorphic unspecified
CGB070	rock
CGB071	rock	igneous granodiorite
CGB072	rock	igneous volcanic
CGB073	rock	sedimentary volcaniclastic
CGB074	rock	igneous volcanic
CGL926	rock	metamorphic metaporphyry
CHT824	concentrate	panned C3 fraction
CHT826	concentrate	panned C3 fraction
CHT829	concentrate	panned C3 fraction
CHT830	concentrate	panned C3 fraction
CHT842	concentrate	panned C3 fraction
D120778	rock	igneous quartz monzonite
D120779	rock	igneous quartz monzonite
D120780	rock	igneous quartz monzonite
D120781	rock	igneous quartz monzonite
D120782	rock	igneous quartz monzonite
D120783	rock	igneous quartz monzonite
D120784	rock	igneous quartz monzonite
D149128	rock	igneous peridotite
D233998	rock	igneous granite
M162866	rock	igneous gabbro
M162867	rock	metamorphic metaporphyry

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
ACH670	sedimentary	siltstone
ACH671	igneous	intermediate
ACH672	igneous	intermediate
ACH673	igneous	intermediate
ACH674	igneous	intermediate
ACH675	igneous	intermediate
ACH676	metamorphic	skarn
ACH677	igneous	felsic
ACH678	igneous	intermediate
ACH679	igneous	intermediate
ACH680	metamorphic	skarn
ACH681	igneous	intermediate
ACH699	metamorphic	skarn
ACH700	metamorphic	skarn
ACH701	metamorphic	skarn
ACH703	igneous	intermediate
ACH704	igneous	intermediate
ACH716	igneous	intermediate
ACH719	igneous	intermediate
ACH721	igneous	intermediate
ACH722	igneous	intermediate
ACH723	igneous	intermediate
ACH724	igneous	intermediate
ACH725	igneous	intermediate
ACH739	igneous	intermediate
ACH740	igneous	intermediate
ACH741	igneous	felsic
ACH743	igneous	intermediate
CDP610	metamorphic	jasperoid
CDP611	sedimentary	carbonate
CDP612	igneous	intermediate
CDP615	metamorphic	unspecified
CDP616	metamorphic	metamudstone
CDP617	igneous	granodiorite
CDP618	metamorphic	schist
CDP619	metamorphic	amphibolite
CDP626	unspecified
CGB001	igneous	unspecified
CGB002	igneous	unspecified
CGB003	metamorphic	unspecified
CGB004	metamorphic	unspecified
CGB041	metamorphic	unspecified
CGB068	metamorphic	unspecified
CGB070	unspecified
CGB071	igneous	unspecified
CGB072	unspecified
CGB073	sedimentary	unspecified
CGB074	unspecified
CGL926	metamorphic	unspecified
D120778	igneous	quartz monzonite
D120779	igneous	quartz monzonite
D120780	igneous	quartz monzonite
D120781	igneous	quartz monzonite
D120782	igneous	quartz monzonite
D120783	igneous	quartz monzonite
D120784	igneous	quartz monzonite
D149128	igneous	peridotite
M162866	metamorphic	metagabbro
M162867	metamorphic	metarhyolite

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
Grubstake Creek	Past Producer	AU AG CU
Silver Shield	Prospect	AG PB AU BA CU
Slope Creek	Past Producer	AU AG CU BI
Slope Creek	Past Producer	AU AG BI CU
J.D. Lyons	Prospect	CU
Boulder Creek	Past Producer	AU MO
Silver Shield	Prospect	AG CU AU PB
Slope Creek	Past Producer	AU BI CU AG
Unnamed (southwest of Hill 4410)	Prospect	AG CU PB
Stephanie	Prospect	CU
Grubstake Creek	Past Producer	AU CU AG
Unnamed (in headwaters of Grubstake Creek)	Prospect	AU CU FE PB ZN
Unnamed (in upper Slope Creek)	Prospect	AU CU FE PB ZN
Unnamed (northeast of the head of Quartz Creek)	Occurrence	AU AG PB ZN
Unnamed (north of Slope Creek)	Occurrence	AU
Unnamed Occurrence	Occurrence	AG CU PB
Boulder Creek	Past Producer	AU

Alaska Resource Data File

A comprehensive database of Alaskan mineral deposits compiled from the published literature and from unpublished reports and data from industry, the US Bureau of Land Management, and USGS.

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Site	Status	Commodities
Unnamed (southwest of Hill 4410)	Inactive	Ag;Cu;Pb
Silver Shield	Inactive	Ag;Pb
Boulder Creek	Inactive	Au
Grubstake Creek	Inactive	Au
J.D. Lyons	Inactive	Cu
Grubstake	Active	Au;Cu
Unnamed (in upper Slope Creek)	Inactive	Au;Cu
Slope Creek	Inactive	Au
Unnamed (northeast of the head o...	Inactive	Au
Unnamed (north of Slope Creek)	Inactive	Au
Slope Creek	Inactive	Au
Unnamed (southwest of Indian Pas...	Inactive	Au
Boulder Creek	Inactive	Au

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
ACH594	stream/river	collected by ADGGS;; stream
ACH595	stream/river	collected by ADGGS;; stream
ACH606	stream/river	collected by ADGGS;; stream
ACH607	stream/river	collected by ADGGS;; stream
ACH608	stream/river	collected by ADGGS;; stream
ACH656	stream/river	collected by ADGGS;; stream
ACH657	stream/river	collected by ADGGS;; stream
ACH659	stream/river	collected by ADGGS;; stream
ACH663	stream/river	collected by ADGGS;; stream
ACH664	stream/river	collected by ADGGS;; stream
CDP474	stream/river	stream
CDP486	stream/river	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
CHT830	stream/river	stream
CHT842	stream/river	stream

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
Yukon-Tanana Upland	porphyry copper	Kluane Arc and Tertiary Kuskokwim Mountains volcanic-plutonic belt (continuation of Canadian Cordilleran continental arc); north of the Denali Fault
Western Alaska Range	porphyry copper	Cretaceous porphyry prospects along the Kahiltna Basin-Peninsula terrane boundary
Eastern Alaska Range and Wrangell Mountains	porphyry copper	Cretaceous (115-105Ma) deposits and prospects along the Nutzotin Basin-Wrangellia terrane boundary; south of the Denali Fault
Skolai Arc - Eastern Alaska	porphyry copper	Late Paleozoic Skolai Arc of the Wrangellia terrane; south of the Denali Fault
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.

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
Open Pit Mine	point