[2] Geological investigations of the veins in the mountain have revealed silver, gold, platinum, and palladium mineralization, derived from mid-Cretaceous events.

Tukgahgo, an indigenous name given by the Tlingits, was recorded by geologist Eugene C. Robertson and published by the United States Geological Survey (USGS) in 1952.

[2] Vanderbilt Point is located 3 miles (4.8 km) west of Tukgahgo's summit.

"[5] The geologic formations of the area consist of metabasalts and amphibolites, which are enclosed as roof pendants within the hornblende diorite, granodiorite and monzonite.

The metallic elements identified as present in the vein structures include silver, gold, copper, with minor quantities of palladium and platinum but no mining operations have been reported.