The Yankee Boy showing is located on the south bank of the Tchitin River, just east of the Glacier showing (103P 145), about 19.0 kilometres northeast of Alice Arm.
The region is underlain by Lower Jurassic Hazelton Group volcanics and sediments situated on the east limb of the north-northwest trending Mount McGuire anticline. These rocks have been regionally metamorphosed to greenschist facies.
In 1916, an opencut at an elevation of 731 metres exposes traces of galena and a unidentified copper mineral in a slightly mineralized zone. The zone, 4.6 to 6.0 metres wide, is developed adjacent to a dike in country rock that appears to be red and green andesitic sandstone, breccia and tuff.
In 2005, Kitsault Resources Ltd. completed a reconnaissance stream sediment survey on the area as the Kitsault Gold property.