The Golden Eagle mine is situated 15 kilometres up the Granby River from Grand Forks, on the east side, and 2.5 kilometres from the main road at an elevation of 850 metres. The development, dating from 1898 and the early part of the century, consists of a shaft 45 metres deep, a crosscut tunnel 117 metres long, and drifting and stoping for 110 metres. The crosscut adit was driven east-southeast from the northeast corner of the claim. Two veins were cut - the first 43 metres from the beginning of the crosscut, and the other at 117 metres, which vary in width from 5 centimetres to 2 metres.

The Golden Eagle vein occurs along the western contact of the most westerly of two large porphyry dikes. The country rock in the vicinity of the workings is greenstone with distinctive small fragments of crystalline limestone. Near the veins greenstone has been altered by silicification and pyritization. The veins are composed of saccharoidal calcite, quartz, chalcopyrite, pyrite and arsenopyrite. The sulphides are oxidized throughout the mine to iron oxide, malachite and chrysocolla. Some native copper has been reported. Assay results are from 7 grams per tonne of gold, 70 grams per tonne of silver on the first vein; 2.1 grams per tonne of gold, 31 grams per tonne of silver, and 0.5 per cent copper, for the second vein in (tunnel sample); and 12.3 grams per tonne gold, 860 grams per tonne silver, and 5.6 per cent copper for the second vein (stope sample).

Production from 1900 to 1941 totalled 81,613 grams of silver, 8927 grams of gold, and 15,296 kilograms of copper from 1099 tonnes.