Forest cover map showing a crossing area of the McGregor River is annotated with a road and ferry crossing.

During the 1980s, Agriculture Canada pedologists Scott Smith (retired from Summerland Research Station, formerly based in Whitehorse) and Charles Tarnocai (retired from Central Experimental Farm, Ottawa) had a large field program which addressed the trends in soil development in the central Yukon. Across this region, particularly between Whitehorse and Dawson City, the land surfaces and surficial deposits vary greatly in age due to the differing extents of glaciations over the past ~2 million years.

Tarnocai and Smith shared the unpublished data and soil samples from this work with Dr. Paul Sanborn, and this resulted in a student project published as:
Daviel, E., P. Sanborn, C. Tarnocai, and C.A.A. Smith. 2011. Clay mineralogy and chemical properties of argillic horizons in central Yukon paleosols. Canadian Journal of Soil Science 91: 83-93. https://doi.org/10.4141/cjss10067

This data set consists of transcribed data from lab data sheets, showing McQuesten-Dawson City paleosol data from the Tarnocai and Smith 1983 AAFC Yukon Paleosol Study. The data set includes chemical and particle size data for Tarnocai & Smith samples, as determined by the Ag Canada lab. Note that the “Site” column indicates the NTS topographic map sheet (e.g. 115P/13) for the sampling locations.

Photograph depicts McRae creek canyon.

Photograph depicts McRae Creek Falls.

Photograph depicts McRae Creek Falls.

Item is a photograph of a copy print, resulting in a low quality photographic reproduction. Reproduced as a print, slide, and a negative. Location of original photograph is unknown.

Item is "Memorandum regarding Future Logging at Aleza Lake" by F.S. McKinnon.

Photograph depicts two men working with air track drill in mine area. Hose and dynamite box in foreground, mountains in background. Handwritten annotation on verso of photograph: "Sept. 1954." This photograph was originally stored inside duotang labeled "CASSIAR ASBESTOS CORPORATION LIMITED PHOTOGRAPHS 1954"; photo caption beneath this image: "Starting New Bench at South end of Deposit."

Photograph depicts two men and bulldozer near what appears to be many piles of logs. Unidentified buildings in background.

Photograph depicts pipeline construction workers for the Pacific Northern Gas pipeline from Summit Lake to Kitimat with a helicopter on the north end of Prudhomme Lake.

Photograph depicts two men aboard a two horse driven sleigh stopped on a snow covered path. Annotation on recto of photograph states: "The Top of Bald Mountain"

Photograph depicts two men beside the creek below the lake outlet at the proposed site for the hydro power project on Klemtu Lake.

Photograph depicts three men standing with oars in small boat, forest slash at their feet. More slash lies in foreground behind bushes and plants on swampy shore. Trees in background. These men are believed to be members of the Bourchier forestry crew.

Photograph depicts two men on a log deck, possibly at Peden Hill sawmill.

Photograph depicts two men on a 'Maple Leaf' Chevrolet truck's running board in an active logging area near Peden Hill sawmill. The truck is hauling raw logs. The man at the right of photograph is Cornel Neronovitch.

Photograph depicts workers sitting in the back of a truck at the construction site for the Pacific Northern Gas pipeline from Summit Lake to Kitimat.

Item is a photograph of a copy print, resulting in a low quality photographic reproduction. Reproduced as a print, slide, and a negative. Location of original photograph is unknown.

Photograph depicts two men perched on top of a freight truck carrying a load of timber at Peden Hill sawmill.

Original photographic print included in "Northern Interior Forest Experiment Station: Report of Preliminary Investigations" by Percy Barr. Marked plot reads: "F ^ B, Plot No. 112, North End".

Annotation on slide: "Light residual basal area, Summit Lake, Summer '92, Jull".

No annotation on slide.

Annotation on slide: "Basal scarring on Douglas fir, Summit Lake".

Annotation on slide: "Blowdown due to butt rot (tomentosus), Summit Lake".

Annotation on slide: "Summit Lk., Mod. vol. removal".

No annotation on slide.

Annotation on slide: "Summit Lake M. Jull on skid road with advanced regen".