Scientific data near [62.92750,-156.89940]

Search area extends approximately 17.8 km east-west and 39.1 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Yukon-Koyukuk	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Iditarod D-2	1:63,360 Alaska quadrangle
Iditarod	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Upper Innoko River	hydrologic unit
190408	hydrologic accounting unit
Southwest 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
Kk	Sedimentary	Kuskokwim Group, undivided
Kk	Sedimentary	Kuskokwim Group, undivided
Kk	Sedimentary	Kuskokwim Group, undivided
Kmvi	Igneous - Volcanic	Mafic to intermediate volcano-plutonic complexes
Kmvi	Igneous - Volcanic	Mafic to intermediate volcano-plutonic complexes
Kmvi	Igneous - Volcanic	Mafic to intermediate volcano-plutonic complexes
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
TKg	Igneous - Plutonic	Felsic granitic rocks

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
West-Central Alaska	M-D	West-Central Alaska 21360 line km with spacing 9.60 km over parts of AK
Ophir	M/R-D	Ophir 2245 line km with spacing 9.60 km over parts of AK
Iditarod	M/R-D	Iditarod 2301 line km with spacing 9.60 km over parts of AK
Iditarod 2010	M/EM-D	Iditarod 2010 5471 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-SW05	Peraluminous granite porphyry gold
AK-SW14	Placer Au
AK-SW13	Plutonic porphyry Au
AK-SW16	Polymetallic vein

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
Farewell buried	Back-arc basin	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
CFP925	rock	igneous monzonite
CFP926	rock
CGG901	rock	igneous unspecified
CGX467	concentrate	panned C3 fraction
CGX475	concentrate	panned C3 fraction
CGX479	concentrate	panned C3 fraction
CGX514	concentrate	panned C3 fraction
CGX521	concentrate	panned C3 fraction
CGX532	concentrate	panned C3 fraction
CGX534	concentrate	panned C3 fraction
CGX547	concentrate	panned C3 fraction
CGX549	concentrate	panned C3 fraction
CGX555	concentrate	panned C3 fraction
CGX561	concentrate	panned C3 fraction
CGX602	concentrate	panned C3 fraction
CGX746	sediment
CGX747	sediment
CGX794	sediment
CGX966	sediment
CGX969	sediment
CGX970	sediment
CGX972	sediment
CGX974	sediment
CGX979	sediment
CGX983	sediment
CGX985	sediment
CGX995	sediment
CHA624	rock	igneous monzonite
CHA625	rock	igneous monzonite
CHA626	rock	igneous monzonite
CHA627	rock	igneous monzonite
CHA628	rock	metamorphic hornfels
CHA629	rock	igneous monzonite
CHD229	rock	igneous monzonite
CHD230	rock	igneous monzonite
CHD231	rock	igneous monzonite
CHD232	rock	igneous monzonite
CHD233	rock	igneous monzonite
CHD234	rock	igneous monzonite
CHD235	rock	igneous monzonite
CHD236	rock	igneous monzonite
CHD237	rock	igneous monzonite
CHD238	rock	igneous monzonite
CHF156	sediment
CHF753	concentrate	panned C3 fraction
CHG125	rock	igneous intermediate
CHG126	rock	igneous intermediate
CHG127	rock	igneous intermediate
CHG128	rock	igneous mafic
CHG979	rock	igneous intermediate
CHG982	rock	metamorphic hornfels
CHG984	rock	igneous intermediate
CHG988	rock	igneous monzonite
CHG991	rock	igneous monzonite
CHI003	sediment
CHI008	sediment
CHI017	sediment
CHI019	sediment
CHI022	sediment
CHI029	sediment
CHI036	sediment
CHI044	sediment
CHI219	sediment
CHI261	sediment
CHI275	sediment
CHI279	sediment
CHI575	sediment
M173459	rock	igneous monzonite
M173460	rock	igneous monzonite

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.

Database Home

Sample ID	Date collected	Sample type
7013545	1978-08-13	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013546	1978-08-13	Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013547	1978-08-13	Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013549	1978-08-13	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013550	1978-08-13	Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013551	1978-08-13	Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013552	1978-08-13	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013553	1978-08-13	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013554	1978-08-13	Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7013555	1978-08-13	Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7015536	1978-08-11	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.

Database Home

Sample ID	Date collected	Sample type
3014614	1978-08-13	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014615	1978-08-13	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014616	1978-08-13	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014618	1978-08-13	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014619	1978-08-13	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014620	1978-08-13	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014621	1978-08-13	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014622	1978-08-13	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014623	1978-08-13	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014624	1978-08-13	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3014625	1978-08-13	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3016657	1978-08-11	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.

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"

Database Home

Sample ID	Rock type	Rock name
CFP925	unspecified
CFP926	unspecified
CGG901	igneous	unspecified
CHA624	unspecified
CHA625	unspecified
CHA626	unspecified
CHA627	unspecified
CHA628	unspecified
CHA629	unspecified
CHD229	igneous	unspecified
CHD230	igneous	unspecified
CHD231	igneous	unspecified
CHD232	igneous	unspecified
CHD233	igneous	unspecified
CHD234	igneous	unspecified
CHD235	igneous	unspecified
CHD236	igneous	unspecified
CHD237	igneous	unspecified
CHD238	igneous	unspecified
CHG125	igneous	unspecified
CHG126	igneous	unspecified
CHG127	igneous	unspecified
CHG128	igneous	unspecified
CHG979	igneous	unspecified
CHG982	metamorphic	unspecified
CHG984	igneous	unspecified
CHG988	igneous	unspecified
CHG991	igneous	unspecified
M173459	igneous	monzonite
M173460	igneous	monzonite

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.

Database Home

Site name	Development	Commodities
Unnamed Prospect Beaver Mtns	Occurrence	CU SB AS AG SN ZN

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.

Database Home

Site	Status	Commodities
Unnamed (near hill 3670 in north...	Inactive	Ag;Cu
Unnamed (head of Beaver Creek)	Inactive	Ag;Au;Cu
Ganes Creek	Inactive	Ag;Au;Cu
Unnamed (northeast of Tolstoi La...	Inactive	Ag;Cu;Sb
Unnamed (ridge at head of Brown ...	Inactive	Ag;As;Cu;Pb;Zn
Unnamed (on hill 3420 north of G...	Inactive	Ag;Au;Cu;Pb;Zn
Unnamed (ridge between Beaver an...	Inactive	Ag;Zn

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.

Database Home

Sample ID	Sample source	Sample notes
CGX746	stream/river	stream
CGX747	stream/river	stream
CGX794	stream/river	stream
CGX966	stream/river	stream
CGX969	stream/river	stream
CGX970	stream/river	stream
CGX972	stream/river	stream
CGX974	stream/river	stream
CGX979	stream/river	stream
CGX983	stream/river	stream
CGX985	stream/river	stream
CGX995	stream/river	stream
CHF156	stream/river	stream
CHI003	stream/river	moss-trapped sediments;; stream
CHI008	stream/river	moss-trapped sediments;; stream
CHI017	stream/river	moss-trapped sediments;; stream
CHI019	stream/river	moss-trapped sediments;; stream
CHI022	stream/river	moss-trapped sediments;; stream
CHI029	stream/river	moss-trapped sediments;; stream
CHI036	stream/river	moss-trapped sediments;; stream
CHI044	stream/river	moss-trapped sediments;; stream
CHI219	stream/river	moss-trapped sediments;; stream
CHI261	stream/river	moss-trapped sediments;; stream
CHI275	stream/river	moss-trapped sediments;; stream
CHI279	stream/river	moss-trapped sediments;; stream
CHI575	stream/river	moss-trapped sediments;; 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.

Database Home

Sample ID	Sample source	Sample notes
CGX467	stream/river	stream
CGX475	stream/river	stream
CGX479	stream/river	stream
CGX514	stream/river	stream
CGX521	stream/river	stream
CGX532	stream/river	stream
CGX534	stream/river	stream
CGX547	stream/river	stream
CGX549	stream/river	stream
CGX555	stream/river	stream
CGX561	stream/river	stream
CGX602	stream/river	stream
CHF753	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.

Database Home

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
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.