8 CONTENTS. 
Coal resources of southwestern Alaska — Continued. Page. 
Description of localities — Continued. 
Chignik Bay 163 
Chignik River 164 
Whalers Creek 165 
Thompson Creek 165 
Hook Bay 166 
Other localities 166 
Herendeen Bay 166 
Unga Island 167 
South coast, from Chignik Bay to end of peninsula 169 
Aleutian Islands 169 
Analyses 169 
Market 171 
Coal fields of the Cape Lisburne region, by Arthur J, Collier 172 
Introduction 172 
History and exploration 173 
Geology 174 
Paleozoic formations 174 
Mesozoic formations 1 75 
Quaternary formations 1 76 
Detailed description of the coal fields 176 
Mesozoic coal field 176 
Geology, topography, and extent 176 
Corvvin group 1 77 
Thetis group 179 
Beds below the Thetis group 1 79 
East of Cape Sabine .' 179 
Cape Beaufort field 1 80 
Inland extension 180 
Character of Mesozoic coal 1 80 
Conditions of mining and development 180 
Paleozoic coal fields 181 
Location 181 
South of Cape Lisburne 182 
Cape Lewis field 182 
Cape Dyer field 183 
Kukpuk River 183 
( !ape Thompson 183 
Inland extension of Paleozoic coals 183 
Character of Paleozoic coals 1 84 
Conditions of development 184 
Summary 1 84 
Index 18< 
