Harrison Creek

Prospect, Active

Commodities and mineralogy

Main commodities Au; Sn; W
Ore minerals cassiterite; gold; wolframite

Geographic location

Quadrangle map, 1:250,000-scale CI
Quadrangle map, 1:63,360-scale B-2
Latitude 65.3803
Longitude -144.8593
Nearby scientific data Find additional scientific data near this location
Location and accuracy The placer prospect consists of 4 claims that extend along Harrison Creek from near the mouth of Bottom Dollar Creek, upstream to near the mouth of Squaw Creek; the location is in about the center of the claims. The claims extend along the northern half of sections 3 and 4, T. 6 N., R. 14 E. The location is accurate.

Geologic setting

Geologic description

Jim Halloran in an unpublished report (2007) reports placer gold in Harrison Creek along 4 claims that extend from near the mouth of Squaw Creek downstream to near the mouth of Bottom Dollar Creek. His report is based on drilling by E.N. Wolf in 1995; Wolf's work consisted of 28 holes along 7 lines. Based on his samples, Wolf estimated that there is about 2.9 million cubic yards of auriferous gravels on the claims with an average grade of 0.032 ounce of gold per cubic yard. Earlier drilling by the United States Smelting, Refining, and Mining Company in 1938, which wholly or in part may not coincide with the later Wolf drilling, gave much lower values. Halloran, however, suggests that the Wolf numbers are conservative because his drilling apparently did not reach bedrock where the most gold is likely to be located. Cassiterite and wolframite also occur in the concentrates.
Geologic map unit (-144.861736241699, 65.3799340651289)
Mineral deposit model Placer gold (Singer and Cox, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Jim Halloran in an unpublished report (2007) reports placer gold in Harrison Creek along 4 claims that extend from near the mouth of Squaw Creek downstream to near the mouth of Bottom Dollar Creek. His report is based on drilling by E.N. Wolf in 1995; Wolf's work consisted of 28 holes along 7 lines. Earlier drilling by the United States Smelting, Refining, and Mining Company in 1938, which wholly or in part may not coincide with the later Wolf drilling, gave much lower values.
Indication of production None
Reserve estimates Based on 28 drill samples along 7 lines, E.N. Wolf estimated that there is about 2.9 million cubic yards of auriferous gravels on the four claims with an average grade of 0.032 ounce of gold per cubic yard. Earlier drilling by the United States Smelting, Refining, and Mining Company in 1938, which wholly or in part may not coincide with the later Wolf drilling, gave much lower values. Halloran, however, suggests that the Wolf numbers are conservative because his drilling apparently did not reach bedrock where the most gold is likely to be.
Production notes There is no record of gold production on Harrison Creek. However, there were at least 100 claims on the creek in 1897 just before the rush to the Klondike in 1898. A small amount of gold may have been produced then but there is no indications of any substantial production since and no production from the Halloran claims.

References

Reporters D.J. Grybeck (Port Ludlow, WA)
Last report date 6/5/2008