Signs of San Diego Bay porphyry

CopperBank Resources Corp. Nov. 28 said this year's rock and soil sampling program at San Diego Bay is a good first step in understanding the porphyry copper-gold potential of this project on the Alaska Peninsula.

Geologists collected 37 grab rock samples and 173 soil samples during the summer program at San Diego Bay.

The soil samples were collected over three areas: San Diego Bay in the southeas...