4 CONTENTS. 
The Alaska coal fields — Continued. Page. 
Character of the coal 44 
Developments and production 45 
Lode mining in southeastern Alaska, by C. W. Wright 47 
Introduction 47 
Geology 47 
Bedded rocks 48 
Intrusive rocks 48 
Structure 48 
Mineralization 49 
Ore bodies 50 
Gold 51 
Occurrence 51 
Production 51 
Juneau mining district 52 
Mines of Douglas Island 52 
Gold Creek mines 54 
Mines north of Juneau 56 
Montana Creek 56 
Windfall Creek 56 
Peterson Creek 56 
Eagle River 57 
Yankee Basin 57 
Berners Bay 57 
Mines south of Juneau 58 
Admiralty Island 59 
Sitka mining district 59 
Geology 59 
Baranof Island 60 
Chichagof Island 60 
Ketchikan mining district 61 | 
Prince of Wales Island 62 | 
Gravina Island 62 
Revillagigedo Island 63 
Cleveland Peninsula 63 
Wrangell mining district 63 
Skagway mining district 64 
General statement 64 
Lituya Bay 64 
Copper 65 
Production 65 
Ketchikan mining district 66 
Kasaan Peninsula 66 
Skowl Arm 69 
North Arm 69 
Niblack Anchorage 70 
Hetta Inlet 70 
Gravina Island 71 
Wrangell district 72 
Silver, lead, and zinc 72 
NONMETALLIFEROUS MINERAL RESOURCES OF SOUTHEASTERN ALASKA, by 
C. W. Wright 73 
Introduction 73 
