The Walden gold occurrence is reported to have been mined, up to 1925, from quartz veins located in the headwaters of Kanaka Creek, in the vicinity of Blue Mountain and at an elevation of 495 metres.

The majority of the region is underlain by granodiorite to diorite intrusions of the Jurassic to Cretaceous Coast Plutonic Complex. Roof pendants of the Paleozoic Twin Island Group and Jurassic Harrison Lake Formation occur throughout the area.

Locally, a shaft now flooded and debris filled, follows a 0.3 metre wide quartz vein trending 048 degrees and dipping vertically. The dioritic wall rocks and vein hosts pyrite and minor chalcopyrite mineralization along fractures.

In 1925, sorted ore was reported to have graded up to 2650 grams per tonne gold (Assessment Report 14713, page 4).

The area was initially staked and worked by George and John Walden prior to 1920. The in the 1920's the area was restaked. In 1980 and 1981, small ground electromagnetic surveys were performed on the area as the Mud Mountain property. During 1984 and 1985, programs of rock, silt and soil sampling were performed on the area as the Treasure property. In 1996, the area was prospected as the Blue Mountain property.