Sawlog Creek

Mine, Undetermined

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale CH
Quadrangle map, 1:63,360-scale B-5
Latitude 67.404
Longitude -149.1656
Nearby scientific data Find additional scientific data near this location
Location and accuracy Sawlog Creek is a small headwater tributary to the South Fork Koyukuk River; its mouth is about 5 miles south-southwest of the south end of Twin Lakes. The small placer mine on Sawlog Creek is sometimes confused with the nearby one on Dennys Gulch (CH019) because there was placer activity on both in which Denny O'Keefe was involved. For this record, the site is arbitrarily located on upper Sawlog Creek at an elevation of about 2,300 feet. It is about 0.6 mile north-northwest of the center of section 29, T. 30 N., R. 7 W.

Geologic setting

Geologic description

Brosgé and Reiser (1964) reported placer activity about 1 mile upstream from where Sawlog Creek enters the valley of the South Fork Flats. However, this activity my refer to the better known placer and lode work in Dennys Gulch (CH019), just over the low divide at the head of Sawlog Creek. Kurtak and others (2002) note that claims were staked on Sawlog Creek in 1949 and that a magnetic survey was run in 1951 that covered Dennys Gulch and Sawlog Creek. Williams (1952) reported that the results of the magnetometer survey were generally inconclusive. The survey was performed at the request of the property owners, however, which suggests some activity at that time. A placer claim was staked on Sawlog Creek in 1960 (Heiner and Wolff, 1968) and DeYoung (1978) reported placer mining in 1964. Kurtak and others (2002) (briefly?) visited Sawlog Creek in their comprehensive study of the mineral resources of the Koyukuk mining district but found no evidence or past or current mining.
Geologic map unit (-149.168331408283, 67.4035936594634)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Brosgé and Reiser (1964) reported placer activity about 1 mile upstream from where Sawlog Creek enters the valley of the South Fork Flats. However, this activity my refer to the better known placer and lode work in Dennys Gulch (CH019), just over the low divide at the head of Sawlog Creek. Kurtak and others (2002) note that claims were staked on Sawlog Creek in 1949 and that a magnetic survey was run in 1951 that covered Dennys Gulch and Sawlog Creek. Williams (1952) reported that the results of the magnetometer survey were generally inconclusive. The survey was performed at the request of the property owners, however, which suggests some activity at that time. A placer claim was staked on Sawlog Creek in 1960 (Heiner and Wolff, 1968) and DeYoung (1978) reported placer mining in 1964. Kurtak and others (2002) (briefly?) visited Sawlog Creek in their comprehensive study of the mineral resources of the Koyukuk mining district but found no evidence or past or current mining.
Indication of production Undetermined
Reserve estimates None.
Production notes Probably none.

Additional comments

This prospect is on Doyon Ltd. selected lands; for more information, contact Doyon Ltd., Fairbanks, Alaska.
MAS No. 0020310039

References