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Madeline

Past Producer in Alaska, United States with commodity Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10002074
MRDS ID A012930
Record type Site
Current site name Madeline
Alternate or previous names Mattie (upper workings)

Geographic coordinates

Geographic coordinates: -165.35494, 64.58956 (WGS84)
Relative position The Madeline placer mine is at an elevation of about 600 feet in the headwaters of Anvil Creek (NM236) and about 3,400 feet southwest of the summit of King Mountain. It is on the northeast side of the divide between upper Anvil Creek (NM236) and Deer Gulch on Dexter Creek (NM303). The map location is in the SW1/4 section 30, T. 10 S., R. 33 W., Kateel River Meridian. It is included in locality 117 (Dexter Hill) of Cobb (1972 [MF 463], 1978 [OFR 78-93]).

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nome C-1(quadrangle 1:63,360 scale)

Solomon NW(quadrangle 1:100,000 scale)

Nome(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nome(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -165.35494, 64.58956
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The Madeline mine is one of several near the divide between upper Anvil Creek (NM236) and Dexter Creek (NM303) at surface elevations of about 450 to 600 feet, where high-level gravels were placer mined for gold. These deposits were in gravels that ranged from a few feet to 150 feet thick and commonly were very rich (Brooks and others, 1901). The richest pay was near bedrock and in decomposed or fractured bedrock. The high-level gravels were mined mostly by drifting, but some hydraulic mining also took place. At the Madeline mine, the section exposed in a shaft included 1 foot of turf and 60 feet of sand and gravel overlying 4 to 9 feet of pay gravel; the pay streak was in a bedrock channel 15 to 150 feet wide that was followed for one-half mile (Collier and others, 1908). The high-level gravels were originally interpreted as alluvial deposits in stream channels of former drainage systems, but more recent interpretations describe them as glacial outwash-related material (Cobb, 197 [B 1374]; Nelson and Hopkins, 1972). The presence of erratic granite boulders and other exotic rock types suggests a glacial origin, but the exotic clasts are mostly in near-surface materials and not distributed throughout the high-level gravels (Moffit, 1913). The origin of the high-level gravels thus still seems in question. The richness of some of the placers suggests extensive reworking, proximity to lode sources, or both.? the Anvil fault transects the area near Nekula Gulch. The Anvil fault is a through-going, high-angle structure that juxtaposes different types of graphitic schist in this area (Hummel, 1962 [MF 247]). Bedrock is mostly graphitic schist, probably of early Paleozoic protolith age (Hummel, 1962 [MF 247]; Sainsbury, Hummel, and Hudson, 1972 [OFR 72-326]; Till and Dumoulin, 1994; Bundtzen and others, 1994).
  • Age = Quaternary.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Probably inactive

Mining district

District name Nome

Comments on the production information

  • Production Notes = Production from the high-level gravels of the general area totaled about 100,000 ounces by 1903 (Collier and others, 1908).

Comments on the workings information

  • Workings / Exploration = The Madeline mine is a drift mine off a shaft about 65 feet deep. At least a half mile of drifting took place.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Collier and others, 1908

General comments

Subject category Comment text
Deposit Model Name = Alluvial placer Au (Cox and Singer, 1986; model 39a).

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUL-00 Hawley, C.C. Hawley Resource Group
Reporter 10-JUL-00 Travis L. Hudson Hawley Resource Group

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.