Trailbreaker Resources Ltd. announced it has now added the 919-hectare (ha) Sheldon property, located in central Yukon, as part of its robust property portfolio. The Sheldon property covers a ?Reduced Intrusion Related Gold System? (RIRGS), located within the Tombstone Gold Belt of the Selwyn Basin.

The Tombstone Belt is host to gold (Au)-bearing prospects and deposits including: Snowline Gold?s Valley discovery (e.g. 410.0 m @ 1.89 g/t Au); Kinross Gold?s Fort Knox mine (10 million ounces of gold, including past production) and Victoria Gold?s Eagle mine (4.3 million ounces of gold). The property is located along the North Canol Road approximately 110 km northeast of the town of Ross River. The property has excellent infrastructure with road access within 800 m of the property boundary.

The Sheldon property is underexplored and has undergone only short surface sampling campaigns between the early 1990s and 2012. A regional-scale Z-Axis Tipper Electromagnetic (ZTEM) survey was flown over a significant portion of the Selwyn Basin in 2008. This data was reprocessed by Condor Consulting in 20134 and made publicly available by the Yukon Geological Survey.

The data from this survey shows magnetic and conductivity characteristics across the Sheldon property that are common in RIRGS deposits. These features include a high resistivity signature associated with the felsic intrusive rocks and magnetic high features surrounding the intrusions, associated with pyrrhotite-bearing hornfelsed sedimentary rocks. Of particular interest are two magnetic ?pimples?

within the claim boundaries that may reflect strongly hornfelsed rocks above a blind intrusion. As the highest grades of RIRGS mineralization commonly occur in upper portions of fertile intrusions, the potentially intact carapace in the northwest and southeast property areas highlight attractive exploration targets. Neither of these target areas have undergone any documented exploration.

Most geochemical sampling and mapping to date has been focused on the southern extent of the Sheldon Stock, where gold mineralization was first encountered. Although less geochemical coverage occurred along the northern flank of the stock, the more limited work revealed consistently elevated gold values from rock and soil sampling. Additionally, this area has the best correlation between gold (Au) and tellurium (Te), a robust pathfinder element for Au in RIRGSs.

The spacing between sampling in this area is such that a significant deposit could occur between sample locations, based on the approximate footprint of other RIRGS deposits, including Snowline Gold?s Valley prospect. The Sheldon property is centered on the mid-Cretaceous Sheldon stock, a member of the Tombstone Gold Belt intrusive suite emplaced within the Selwyn Basin of Yukon. The Sheldon stock is described as a polyphase biotite granitic to granodioritic intrusion, emplaced during a regional extensional event coincident with emplacement of the Tombstone intrusive suite.

Gold mineralization is associated with quartz and arsenopyrite veining within the Sheldon Stock, as well as in hornfelsed sedimentary rocks surrounding the stock. The Sheldon property displays many classic features of RIRGS deposits 7, including, but not limited to: Sheeted quartz veins hosted in a mid-Cretaceous granite; Intrusive rocks with biotite>hornblende, indicating volatile content of the intrusion; Constrained size of intrusive stock is favourable for hosting RIRGS; Strong gold-arsenic-bismuth-tellurium-tungsten (Au-As-Bi-Te-W) geochemical association; Typical geophysical characteristics (resistivity high and magnetic high around stock) of a felsic intrusion surrounded by a hornfelsed aureole in sedimentary rocks. Additional geochemical sampling and geological mapping is recommended to be completed over areas of low sample density, particularly where magnetic ?pimples?

occur in the northwest and southeast of the property. This is also recommended to be done along the northern margin of the Sheldon Stock, where a strong Au-Te association is observed. A higher-resolution magnetic survey will aid in further defining the hornfelsed alteration zone and granitic intrusive boundaries.

Follow-up drill testing should focus on the most prospective geological and geochemical targets to test for bulk-tonnage RIRGS mineralization in the vertical dimension.