The Moose-Lamb occurrence is situated 0.5 kilometre east of the Kitsault River, 23 kilometres north of Alice Arm. This deposit was extensively explored between 1955 and 1957 for silver-bearing volcanogenic exhalites similar to the Torbrit mine (103P 191) to the west.
The area is underlain by a sequence of volcanic and sedimentary rocks belonging to the Upper Triassic Stuhini Group and the Lower Jurassic Hazelton Group. The sequence is folded into a doubly plunging, north-northwest trending syncline (the Kitsault River syncline) and has been regionally metamorphosed to greenschist facies.
The Moose-Lamb deposit consists of a stratiform volcanogenic silver-zinc-lead-barite exhalative horizon developed in a section of andesitic pyroclastic Hazelton Group rocks. The deposit is overlain by plagioclase porphyritic andesitic ash-lapilli tuff and underlain by andesitic vitric (shard) tuff that have been variably propylitized, carbonatized and silicified. The deposit strikes 108 degrees, dips 70 degrees north and has been traced for 270 metres in a series of trenches. Exposed widths vary from 2.1 to 3.0 metres. The mineralogy is similar to the Torbrit deposit consisting of massive pyrite, sphalerite, galena, minor chalcopyrite and traces of pyrargyrite, argentite and tetrahedrite intercalated with laminations of quartz, calcite, barite, celestite, hematite, jasper, siderite and magnetite. Galena-lead isotope data indicates that the mineralization is probably Lower Jurassic in age (D. Alldrick, personal communication, 1989).
The mineralization is estimated to average 135 grams per tonne silver (Devlin, 1987, page 29). Sampling has resulted in assays of up to 411 grams per tonne silver (Minister of Mines Annual Report 1923, page 60).
In 1923, a significant amount of exploratory work had been done on each of the two veins, upper and lower, by Strombeck Bros. of Alice Arm. On the upper vein, numerous opencuts trace the vein on the surface for about 274 metres, indicating its strike to be 080 degrees, dipping 70 degrees north. Three tunnels have been driven on the vein. The lower or No.1 tunnel, at 571 metres elevation, was run on a hearing of 010 degrees and is therefore a crosscut to pick up the vein outcropping 9 metres above it. It was driven 23 metres without intersecting the vein, and crosscuts to the east 7.6 metres and west 3.6 metres failed to locate it. Some distance east of the No.1 tunnel, another tunnel (No.2), at 640 metres elevation, was driven a distance of 13.7 metres intersecting the vein which is 3 metres wide and well mineralized with pyrite. About 23 metres east of the No.2 tunnel, on the same level, another short tunnel (No.3) was driven about 4.5 metres on what appear to be a vein. This work, however, indicates it to be a faulted section from the vein above. Several opencuts trace the vein for a hundred metres beyond the No.2 tunnel; the alignment of these cuts indicate that portions of the vein are faulted to the west, similar to that in No.3 tunnel. On the lower vein, the first work done is about 46 metres above the railway grade. A number of opencuts have traced this vein up the hill for 152 metres or more, indicating a strike of 080 degrees and dipping 65 degrees north, the same as the upper vein.
During 2010 through 2019, Dolly Silver Corporation explored the area as apart of the Dolly Varden property. A complete property exploration history can be found at the Dolly Varden (MINFILE 103P 188) occurrence.
In 2017, a drill hole (DV17063) yielded 394.2 grams per tonne silver, 2.27 per cent lead and 0.46 per cent zinc over 11.00 metres (7.07 metres true width) (Turner, A.J. (2019-05-08): Technical Report and Mineral Resource Update for the Dolly Varden Property).
In 2018, diamond drilling yielded intercepts of 132.5 and 226.0 grams per tonne silver, 0.65 and 0.09 per cent lead with 0.50 and 0.13 per cent zinc over 12.5 and 29.15 metres (12.07 and 22.33 metres true width) in holes DV18103 and DV18109, respectively (Turner, A.J. (2019-05-08): Technical Report and Mineral Resource Update for the Dolly Varden Property).
