[3] A galena mine existed 40 miles (64 km) from the sea, worked on occasion by a San Francisco corporation with a few hundred tons of ore taken to the city for smelting and refining for silver.

It is bounded by Golovnin Sound to its south, by the Kruzgamepa River to its west and the mountain range to its north (starting with Cape Darby in an arc from).

Two stream originate from here, flow in torrents for some initial reach in the hills and then enters into flatter terrain where the river meanders forming sandbars.

It is met by the Niukluk River, and then flows for considerable distance in loops and forms the headwaters of the delta of Golovnin Sound.

White coarse crystalline marble was reported in the area marked by two branches of the fish river, which are noted between intrusions of granites.

The magnesium limestone formation in the White Mountain of the Fish River Basin is reported to contain fossil fauna in the form of a "heavy-shelled lamilibranch".

In the lower stretch of river water color was very light but got concentrated and heavier towards the constricted part of the valley.

[3] The northern and eastern parts of the basin have the geological formations of schists (with biotite) and limestones similar to the type found in the Placer region.

In the Council district area, placer gold was explored and in 1898 mining was organized in the distrait and the production was substantial and placed second to that produced at Nome.