The Holliday (Shipment) veins are located between Alan and Freer creeks, about 600 metres south of the British Columbia-Yukon border.

Five narrow quartz veins are exposed in shear zones in quartz monzonite of the Early Cretaceous Cassiar batholith. These veins, which are vertical and strike between 065 and 090 degrees, are exposed in trenches for about 30 metres and are up to 25 centimetres in width. Argillic, chloritic and sericitic alteration envelopes may be mineralized with galena, sphalerite and pyrite.

Inferred ore of 36,287 tonnes grades 427.2 grams per tonne silver, 14.95 per cent lead and 20.78 per cent zinc (George Cross News Letter No.43, 1983). These reserves likely include the Discovery (104O 001), Shipment, and Pit (104O 017) veins.

Lead isotopic signatures from the Lucky vein (104O 033) located about 6 kilometres east, plot in a cluster with other local polymetallic occurrences of known mid-Cretaceous through Eocene age. Abbott (1984) has related the veins and replacements of the Rancheria district to small granites that post-date the main Cassiar batholith (Fieldwork 2000, page 62).

In 1947, the Holliday-Discovery property (104O 001) was located and also covered the Holliday-Shipment ground. In 1948, M.K. Pickard, for the Yukon Ranges Exploration Syndicate, built a trail to the claims. A portable gasoline drill was used to mine 4.5 tonnes of ore from the Shipment vein. This was sacked, packed out to the highway on horseback, and shipped to the Trail smelter. The option was relinquished at the end of the 1948 season, and no work was done in 1949.