Fewright (Glacier) Creek flows eastward into the Unuk River and is underlain by Upper Triassic Stuhini Group sediments near the mouth. Further to the west, the Stuhini Group rocks are in contact with Lower Jurassic Hazelton Group volcanics and volcaniclastics of the Unuk River Formation.

In 1929, two claims were located near the mouth of Fewright Creek (Glacier Creek). Gravels were reported to carry free gold on the surface to the amount of $10 gold per ton (gold was valued at $20.718 per ounce in 1929 and this is equivalent to approximately 14 grams per tonne gold).