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Archival description
2023.2.2.3 · Subseries · 2004-2006
Part of Dr. Paul Sanborn fonds

As part of a multidisciplinary team led by Grant Zazula (then a Ph.D. student at Simon Fraser University; later a palaeontologist with the Government of Yukon) and Duane Froese (Professor, University of Alberta), Dr. Paul Sanborn examined a set of buried paleosols (fossil soils) preserved in frozen sediments exposed by placer mining in the spring of 2004.

The findings were published in:
Zazula, G.D., D.G. Froese, S.A. Elias, S. Kuzmina, C. La Farge, A.V. Reyes, P.T. Sanborn, C.E. Schweger, C.A.S. Smith, and R.W. Mathewes. 2006. Vegetation buried under Dawson tephra (25,300 14C yr BP) and locally diverse late Pleistocene paleoenvironments of Goldbottom Creek, Yukon, Canada. Palaeogeography, Palaeoclimatology, Palaeoecology 242: 253–286. https://doi.org/10.1016/j.palaeo.2006.06.005

2023.2.2.5 · Subseries · 1991-2023, predominant 2004
Part of Dr. Paul Sanborn fonds

The Lost Chicken Mine, a placer gold mine in eastern Alaska, approximately 120 km west of Dawson City, Yukon, is an important fossil locality for the late Pliocene (approximately 2.5 – 3.0 million years ago). A comprehensive account of the stratigraphy and paleontology of this site was given by:
Matthews, J.V., Jr., J.A. Westgate, L. Ovenden, L.D. Carter, and T. Fouch. 2003. Stratigraphy, fossils, and age of sediments at the upper pit of the Lost Chicken gold mine: new information on the late Pliocene environment of east central Alaska. Quaternary Research 60: 9-18. https://doi.org/10.1016/S0033-5894(03)00087-5

Dr. Paul Sanborn visited the site on July 20, 2004, as part of a group led by Duane Froese (Professor, University of Alberta). The group concentrated on a single exposure (~ 2 m thick) straddling the Lost Chicken tephra, a volcanic ash bed (2.9 ± 0.4 myr) which is a major stratigraphic marker at the site. Sanborn described, photographed, and sampled this exposure, and obtained a basic set of characterization data. Intact samples were collected but thin sections were never produced.

Pile trestle
2004.8.1.72 · Item · 9 June 1939
Part of Alexander Manson mining collection

Photograph depicts a wooden pile trestle that leads through a wooded landscape. Annotation on recto of photograph reads: "Pile tressle upper end. Sec.#1. Bents 12" centers - 3 only 12" piled driven to refusal; caps 10" x 12" "

Pit & Crushing Plant
2000.1.1.3.13.60 · Item · [ca. 1975]
Part of Cassiar Asbestos Corporation Ltd. fonds

Photograph depicts a portion of the pit in foreground at the Cassiar mine. Crushing plant visible in centre below base of West peak. Footwall road in midground, mine valley in background. Building near trucks at top of pit was called the "shifter shack," where crews were relieved or dropped off for work.

Pit, West Peak, & Plant
2000.1.1.3.13.61 · Item · [ca. 1980]
Part of Cassiar Asbestos Corporation Ltd. fonds

Photograph depicts a portion of the Cassiar pit in right foreground. Crushing plant visible to left of pit, West peak visible in right background. Mountain range can be seen in distance.

2007.1.30.2.012 · Item · [30 June 1966]
Part of Aleza Lake Research Forest fonds

No caption provided with photograph negative. Appears similar to 2007.1.30.2.011, which has the following caption: "Poor quality Spruce left after diameter cutting. Note insect killed trees and leaning tree. Sparse stocking. Very poor increment. Devils Club site. Silty clay. No post logging regeneration. Continous understory of alder and willow. West Branch, F.E.S. Aleza Lake."