Juneau Mineral Information Center  

Primary Magmatic Deposits in the Ketchikan Mining District
Clicking the name on the deposit map accesses a description, photographs, and site maps, when available.
Image Map: Primary Magmatic Deposits of the Ketchikan Mining District Black Bear Lake Stone Rock Bay Bokan Mountain Bug Apex Dora Bay Baker Island Quartz Hill Hump Island Carlanna Creek Quarry San Jaun Bautista Salt Chuck Mount Barnett Chromite Banded Mountain Borroughs Bay Union Bay Iron Salmon Bay

 

Legend

circleMagmatic segregation

square Uranium - REE

Porphyry Cu Porphyry Cu

Porphyry Mo Porphyry Mo

Porphyry Cu-Mo Porphyry Cu - Mo

Intrusives

Stratified
Tgr

Granite (Miocene and Oligocene)

 JMsv

Hazelton Group sedimentary and volcanic rocks (Jurassic to Mississippian)

Tgb

Gabbro (Miocene and Oligocene)
Kum

Ultramafic rocks (Cretaceous)
Tkg

Granodiorite (Paleocene and Cretaceous)
Kg

Granodiorite (Cretaceous)
Kd

Diorite (Cretaceous)
Jgr

Peralkaline granite ring-dike complex (Jurassic)