



LIST OF ILLUSTRATIONS. 



Plate 



A. Hydraulic Mining, Malakoff Diggings Frontispiece. 



B. Distribution of the Volcanic Formations and ( 3 ravel over a portion of Placer and Eldo- 



rado Counties to face page 82 



C. Distribution of the Volcanic and Gravel Formations, near Placerville ...... " 



D. Diagram showing the position of the Table Mountain Lava-Flow, of 



98 



Tuolumne County . 



a 



a 



132 

 134 



E. Sections of Table Mountain, and near Soulsby villc 



F. Sections of Table Mountain, and near Little York between 136 and 137 



G. Diagram showing elevations of Pliocene and Present American and 



Yuba Hi vers, and Sections near La Porte and Red Dog 



u 



344 and 345 



H. Rudyard Reservoir, Central Dam to face 198 



I. Hydraulic Mining, Malakoff Diggings " 202 



K. Section and Plan of Spanish Creek Gravel Deposit " 216 



L. The Calaveras Skull between 268 and 269 



M. Map of the Smartsville Gravels « 380 and 381 



N. Sections of Gravel at Boston Mine, Pearl's Hill, Mooney Flat, etc to face 382 



O. Map and Sections of Blue Tent Mines, and Sections at Sailor Flat and Camden 



Claims : between 412 and 41 3 



P. Sections at Indian Hill, Chicken Point, and in Dutch Flat District to face 418 



"... " 432 



" 444 



Q. Map of the Mining District adjacent to Forest City " 



R. Map of the Region drained by Slate, Canon, and Goodyear Creeks " 



S. Plan of Bald Mountain Mine, Sections near La Porte, Portwine, etc. between 448 and 449 



T. Map of the 1 Region near Gibsonville to face 450 



" 452 



TJ. Map of Poverty Hill, Scalos's Diggings, and Vicinity " 



V. Sections at Brandy City, Bear Hill, Eureka, Gopher Hill, Cherokee, etc. between 462 and 463 



W. Map of the Hungarian Hill Gravel Mines to face 474 



X. Sections of Oroville Table Mountain, and Diagram of Davis Point Gravel " 484 



Y. Map of Vicinity of Oroville Table Mountain " 480 



Map showing the Extent of the Hydraulic Mining Operations near Gold Run, Dutch Flat, Little 



York, You Bet, Chalk Bluffs, Red Dog, Hunt's Hill, and Quaker Hill, on Bear River and 



Canon, Steep Hollow and Greenhorn Creeks. 

 Map of the Tertiary Auriferous Gravel Deposits lying between the Middle Fork of the American 



and the Middle Yuba Rivers, including the Principal Hydraulic Mining Region of the State 



(in two sheets). 



