[1] The source of the Khroma is at the confluence of the Tamteken and the Nemalak-Arangas, flowing down from the Polousny Range.

Owing to its extreme northerly location the Khroma River freezes up in early October and remains icebound until June.

[1] The Kytalyk Wetlands, located between the Khroma and the Sundrun (Khroma-Sundrun Interfluvial Area) is an ecologically important area, providing a favorable habitat for many rare animals.

[5] Gold and tin mining upriver are affecting the ecology of the region by destroying fish and bird habitat.

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