[1][2] Discovery Mine was serviced by air and had an unpaved airstrip to fly people and supplies in and out.

As late as the early 1980s, the airstrip was in sufficiently good shape to use, with only a few potholes even after more than ten years.

The short-life cyanide was undetectable within a few years, but the residual mercury remained in the sediment and entered the food chain.

In 2011 Tyhee advanced their permitting of a new mine to the Developers Assessment Report stage of the Mackenzie Valley Environmental Impact Review process.

Tyhee became insolvent and in 2017 they voluntarily entered receivership and all of its assets were purchased by GoldMining Inc. of Vancouver.