The MGN (Main Grid North) occurrence is located immediately west of the southwest end McDame Lake.

The area is underlain by basaltic volcanic rocks of the Mississippian Slide Mountain Complex.

Locally, carbonate-altered volcanics host north- to northeast-trending quartz veins, up to 0.7 metre wide, with trace pyrite and possible tetrahedrite and/or tennantite mineralization.

In 1980, a chip sample from the veined zone assayed 1.5 grams per tonne gold and 24.1 grams per tonne silver over 0.7 metre, whereas a chip sample from another vein, located approximately 250 metres to the southeast, assayed 66.6 grams per tonne silver over 0.7 metre (Assessment Report 9116).

Work History

The area has been explored in conjunction with the nearby Gold Hill-Lakeshore (MINFILE 104P 017) and MCHWY (MINFILE 104P 128) occurrences and complete exploration histories can be found there.

In 1977, Nu-Energy Development Corp. completed five diamond drill holes, totalling 324.0 metres, and a 29.0 line-kilometre ground electromagnetic (VLF) survey was completed on the BB, Up, Nora, FG 1, Mill, Val, Ned and Jennie Ext. claims.

During 1979 through 1982, Esso Resources Canada Ltd. completed programs of geological mapping, geochemical (rock, silt and soil) sampling, 1261.3 metres of diamond drilling, trenching and ground electromagnetic (VLF) surveys on the area as the McDame property.

In 1985, Erickson Gold Mining completed five diamond drill holes, totalling 345.3 metres, on the area. Previous to this, the area had been prospected, geologically mapped, trenched and sampled.

In 1995, the area was held and examined by Cusac Gold Mines Ltd. as the Table Mountain Gold property.

During 2008 through 2010, Hawthorne Gold Corp., later China Minerals Mining Corp., completed regional programs of geological mapping, geochemical (rock and soil) sampling and 11,657 line-kilometres of airborne magnetic, radiometric and electromagnetic surveys on the area as the Cassiar Gold property.

In 2019, Margaux Resources completed a program of prospecting, geological mapping and rock sampling on the area as the Cassiar Gold property. In 2020, Cassiar Gold Corp. completed a program of regional photogeological interpretation, prospecting and rock sampling on the Cassiar Gold property.