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Ohio

Past Producer in Alaska, United States with commodities Gold, Silver, Lead, Antimony
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Geologic information

Identification information

Deposit ID 10002959
MRDS ID A015456
Record type Site
Current site name Ohio
Alternate or previous names Early Bird, Mayflower, Connors and Stevens

Geographic coordinates

Geographic coordinates: -147.31795, 65.06662 (WGS84)
Relative position Cobb (1972, MF-413), loc. 48; SW1/4SE1/4 sec. 22, T. 3 N., R. 2 E., of the Fairbanks Meridian. This mine is north of Fairbanks Creek, about 1/2 mile west of Too Much Gold Creek, and adjacent to a dirt road. Accuracy is within 1000 feet. This prospect is sometimes referred to as the Mayflower mine or the Connors and Stevens prospect.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Lead Secondary
Antimony Secondary

Comments on the commodity information

  • Ore Material = argentiferous galena

Materials information

Materials Type of material
Silver Ore
Gold Ore
Stibnite Ore
Galena Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -147.31795, 65.06662
ListMap

Comments on the geologic information

  • Geologic Description = Gold is found in quartz-rich shear zones that contain galena, stibnite and pyrite (Smith, 1913; B 525; Killeen and Mertie, 1951). The Ohio claim had a 50-foot shaft which exposed a high-grade stringer varying in width from 6 to 20 inches. The Mayflower claim had an upper shaft 45-feet deep and a lower shaft 60-feet deep. The upper shaft is driven on a northeast striking shear. The lower or southern shaft is driven on two northwest-trending, steeply south-dipping shear zones with vertical slickensides that indicate south-side-down motion (Brooks, 1913, p. 148).? In 1916, several shafts were accessible on the Ohio prospect and were examined by Mertie (1918). A 25-foot-deep shaft on the prospect exposed two coalescing quartz-rich zones that strike N 70 W and dip 45 SW. This ore was considered to be of commercial grade, i.e., approximately 1 ounce of gold per ton. A 57-foot-deep shaft exposed an 8-inch-wide shear zone that assayed $4 to $5 per ton in gold (0.19 to 0.24 ounces of gold per ton). This shear strikes east-west and dips 45 N. A 70-foot-deep shaft had 70 feet of drift at the bottom of the shaft. A gold-bearing, quartz-rich shear zone in this drift averages 4 to 6 inches thick, strikes east-west, and dips 45 SW. This material also was considered to be of commercial grade and carried accessory pyrite and stibnite. Up slope from the 70-foot-deep shaft is a 30-foot-deep shaft driven on a base-metal-rich shear zone containing arsenopyrite, pyrite and quartz. This rock reportedly has high silver values and contained what was thought to be native silver (bismuth?) similar to that identified at the adjacent Mizpah mine (Mertie, 1918). Ore grades in 1912 were estimated at $50 per ton in gold (2.4 ounces of gold per ton) with minor silver (Smith, 1913; B 525).

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the production information

  • Production Notes = The Ohio mine operated in 1914 but production figures are not available (Eakin, 1915). By 1916, the Gilmore mill had treated approximately 350 tons of ore from the Ohio mine (Mertie, 1918).

Comments on the workings information

  • Workings / Exploration = In 1912, the Ohio claim had a 50-foot-shaft which exposed a high grade stringer that varied from 6 to 20 inches wide (Times Publishing Company, 1912). The Mayflower claim had an upper shaft 45 feet deep and a lower shaft 60 feet deep. By 1914 the Ohio shaft was 80 feet deep.? A five-stamp mill (see Gilmore prospect) was erected southeast of the Ohio mine in 1915 and operated from September 1 through the end of the year on ore from the Ohio mine and other producers in the area (Brooks, 1915; Smith, 1917; BMB 142). An adit was collared in 1915 which was planned to extend 800 feet at N 30 W to intersect the Ohio shear zone below the surface weathering zone which had hampered mining on the prospect. By August, 1916, this adit was 240 feet long (Mertie, 1918). In 1916, several shafts were accessible on the Ohio prospect and were examined by Mertie (1918). The Ohio prospect was inactive and the workings obstructed with ice when the prospect was examined in 1931 (Hill, 1933).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015456
USGS Alaska Resource Data File ARDF LG165

Bibliographic references

  • Deposit

    Times Publishing Company, 1912, Tanana Magazine, Quartz Edition: Fairbanks, Alaska 76 p.

  • Deposit

    Smith, P.S., 1913, Lode mining near Fairbanks, in Prindle, L.M., A geologic reconnaissance of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Bulletin 525, p. 153-216.

  • Deposit

    Smith, P.S., 1913, Lode mining near Fairbanks: U.S. Geological Survey Bulletin 542-F, p. 137-202.

  • Deposit

    Brooks, A.H., 1915, Mineral resources of Alaska in 1914: U.S. Geological Survey Bulletin 622, 238 p.

  • Deposit

    Eakin, H.M., 1915, Placer mining in Seward Peninsula: U.S. Geological Survey Bulletin 622-I, p. 366-373.

  • Deposit

    Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p.

  • Deposit

    Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p.

  • Deposit

    Smith, P.S., 1917, The mining industry in the territory of Alaska during the calendar year 1915: U.S. Bureau of Mines Bulletin 142, 66 p.

  • Deposit

    Chapin, Theodore, 1919, Mining in the Fairbanks district: U.S. Geological Survey Bulletin 692-F, p. 321-327.

  • Deposit

    Martin, G.C., 1920, The Alaska mining industry in 1918: U.S. Geological Survey Bulletin 712-A, p. 1-52.

  • Deposit

    Hill, J.M., 1933, Lode deposits of the Fairbanks District, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163.

  • Deposit

    Killeen, P.L., and Mertie, J.B., 1951, Antimony ore in the Fairbanks District, Alaska: U.S. Geological Survey Open-File Report 51-46, 43 p.

  • Deposit

    Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate.

  • Deposit

    Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-633, 72 p.

  • Deposit

    Freeman, C.J., 1992, 1991 Golden Summit project final report, volume 2: Historical summary of lode mines and prospects in the Golden Summit project area, Alaska: Avalon Development Corp., 159 p. (Report held by Freegold Recovery Inc. USA, Vancouver, British Columbia.)

  • Deposit

    Chapin, Theodore, 1914, Lode mining near Fairbanks, Alaska: U.S. Geological Survey Bulletin 592-J, p. 321-355.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-413, 2 sheets, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Livengood quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-819, 241 p.

  • Deposit

    Mertie, J.B., Jr., 1918, Lode mining in the Fairbanks district, Alaska: U.S. Geological Survey Bulletin 662-H, p. 403-424.

  • Deposit

    Smith, S.S., 1917, The mining industry in the territory of Alaska during the calendar year 1915: U.S. Bureau of Mines Bulletin 142, 66 p.

Comments on the references

  • Primary Reference = Mertie, 1918

General comments

Subject category Comment text
Deposit Model Name = Gold-quartz vein.

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAY-1999 C.J. Freeman Avalon Development Corporation
Reporter 04-MAY-1999 J.R. Guidetti Schaefer Avalon Development Corporation