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Photograph depicts large square model of the new mill building that was built at the Cassiar plant site in 1970. Model is displayed on green material laid on floor against wall in unidentified room. Machinery modeled inside the structure is colour-coded.

Photograph depicts large square model of the new mill building that was built at the Cassiar plant site in 1970. Model is displayed outdoors on a platform that stands on four saw horses. Machinery modeled inside the structure is colour-coded. Plant buildings and mountains in background.

Image depicts several unknown individuals present as a piece of machinery is used to assist in the mining of gold at Mosquito Creek in Wells, B.C.

Image depicts a man using a piece of machinery for the mining of gold at Mosquito Creek in Wells, B.C.

Photograph depicts scientists Alejandra Duk-Rodkin (GSC) and Rene Barendregt (U Lethbridge) working at the Norman Range site.

Photograph depicts scientists Alejandra Duk-Rodkin (GSC) and Rene Barendregt (U Lethbridge) working at the Norman Range site.

Photograph depicts scientists Paul Sanborn and Rene Barendregt (U Lethbridge) working at the Norman Range site.

Photograph depicts tramline in a strip cleared of trees on McDame Mountain, bucket in foreground. Handwritten annotation on recto of photograph: "#2 SECTION LOOKING NORTH". Photograph was glued to cardboard backing with the annotation: "1962".

Photograph depicts tramline in a strip cleared of trees on McDame Mountain, bucket in foreground. Handwritten annotation on recto of photograph: "1961 - 62".

Photograph depicts group of 12 men standing on steps at back of main office. Front row: Jack Berry, Mickey Dopson, Andre Beguin, Fred Murray. 2nd row: Dick Stevens, Rene Pasiaud. Third row: Craigie Hood, Alex Powell. Back row: Dr. Charles Cobb MD, Peter Davies, Chuck Caron (holding paper), Bill Johnston. Berry and Dopson are wearing hard hats. Windows and doors of office building in background. Stamped annotation on recto of photograph: "Munshaw Colour Service Ltd. OCT 24 1958".

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

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.

Annotation on slide: "Plot 3 uncut control plot, Summit Lake".

Annotation on slide: "Plot 3, Summit".

Photograph depicts large square model of the new mill building that was built at the Cassiar plant site in 1970. Model is displayed on platform draped with green material. Machinery modeled inside the structure is colour-coded.

Annotation on photograph verso: "South of plot 27, N of 18, 20. 15/1/92. Post-logging. Summit Lake Selection Trial"

Annotation on photograph verso: "View south of unit 27 Post-logging. 15/1/92. Summit Lake Selection Trial"

Annotation on photograph verso: "South of plots 27, 21. 15/1/92. (Post-logging). Summit Lake Selection Trial"

Annotation on photograph verso: "View from Jtn of A Road and Main Road to NE. Pre-logging. 15/1/92. Summit Lake Selection Trial"

Annotation on slide: "20 cm radial growth on released subalpine fir, Summit Lk trial".

Slide depicts the Ranger Station at the Aleza Lake Experiment Station.

Slide depicts a burning building at the Aleza Lake Experiment Station on the date it was shut down by the BC Forest Service.