560 
Gravel yet unworked, between French Corral and North San 
: Juan, 390. 
at Iowa Hill, 119. 
at Michigan Bar, 505. 
at Moore’s Flat, 403. 
on North San Juan Divide, 206. 
near Placerville, 120. 
near Smartsville, 383. 
yield of. See, yield of gravel. 
Gravel Epoch, main features of, stated, 296. 
Gravel Hill, near Bottle Hill, 108. 
Grayel region, limits of, 55. 
Grass Valley, Nevada County, 304. 
locality of implements in gravel, 277. 
Grass Valley and Nevada City, exploration of region between, 
181-191. 
Grass Flat, on divide between Slate and Cation Creeks, 456. 
Gray’s Hill, near Gold Run, 148, 154. 
Gravestone slates, 44. 
Great Eastern Tunnel, 404. 
Great Quartz Vein, 45, 46, 331. 
Great Valley, topography of the, 2-4. 
large amount of gold buried there, 351. 
Greenhorn Creek, topography at head of, 178. 
Green Mountain Caifion, 180. 
Greenwood, seam diggings near, 115. 
Gregory’s Claim, near Oroville, 483. 
Griffett’s, Silas, Claim, in Devil’s Basin, 93, 110. 
Grit Claim, Spanish Dry Diggings, 85, 115. 
Grizzlies, masses of rock so called, at Chips’s Flat, 435. 
Grizzly Canon, near Iowa Hill, 113. 
Grizzly Catton, tributary of Oregon Creek, 431. 
Grizzly Flat, at head of Cosumnes River, 86. 
Grizzly Flat Mine, near Volcanoyille, 96. 
Grizzly Hill, on North San Juan Divide, 395. 
Grizzly Hill and Badger Hill, question whether there is any 
deep channel between, 392, 393. 
Hague, J. D., his report on the gravels of the North San 
Juan Divide, quoted from, 196, 205, 373, 391. 
Hangtown Hill, 86, 104. 
Harpending Claim, 352. 
Hathaway Claim, at mouth of Scotchman’s Creek, 411. 
Hazelgreen Mine, 179. 
Hector, James, M. D., his views of the Sierra Nevada gravels, 
69. 
Hendel, C. W., his views of the channels in Plumas and Sierra 
counties, 209, 210. 
map of Gibsonville and vicinity furnished by 
him, 450. 
map of La Porte and vicinity, 445. 
Henderson Claim, near Placerville, 101. 
Hepsidam and Gibsonville, grade of channel between, 451. 
High gravels, as distinguished from river gravels, 66. 
High Sierra, Southern, its topography, 8, 9. 
Middle, its topography, 9, 10. 
Hippopotamus (?) fragment of tooth from Buckeye Tunnel, 
245. 
analysis of, 245. 
INDEX. 
Hittell, J. S., his views in regard to gravel, quoted, 72. 
quoted in reference to richness of claims at 
Mokelumne City, 128. 
Hog’s Bank, near Damascus, 1038. 
Hook and Ladder Claim, near Placerville, 90, 99. 
Hornby’s Mine, near Deadwood, 93, 103, 106, 110. 
Hotchkiss’s Claim, serpentine near, 84, 
Hot Springs, connected with silicifieation, 328, 
Hornitos, vicinity of, a locality of implements in the gravels, 
261. 
Horse, fossil, remains of, found in California, 249, 256-258. 
Horseshoe Bend, locality of vertebrate remains and imple- 
ments in gravel, 252, 261. 
Howland Flat, mines at, 457. 
Hubbard, R. D., authority for discovery of implements under 
lava, 274. 
Hubbard’s Tunnel, at You Bet, 165. 
Tubbs, Panl K., discoverer of fragment of human skull in 
gravel taken from under Table Mountain, 264. 
Human remains and works of human hands, occurrence of, 
in auriferous gravels, discussed, 258-288. 
Hungarian Hill, map of, 474. 
Hungarian Hill Company, 217. 
Hunt’s Hill, 417, 419. 
Hydraulic mining, defined, 61. 
conditions of successful, 298. 
methods of, unfavorable to discovery of 
fossils, 260. 
Ice had no part in gravel phenomena, 295. 
Ice markings not visible on bed-rock surface, 337. 
Illinois Cafion, near Georgetown, 84. 
seam diggings, at, 115. 
Implements found in gravels, character of, 286. 
Titez (Sta.) Range, structure of, 19. 
India, evidence of antiquity of man from, 285. 
Indian Caton, near Iowa Hill, 87, 92, 113. 
Indian Diggings, on Indian Creek, 87. 
Indian Gulch, near Volcano, locality of diamonds, 364, 
limestone near, 87. 
locality of vertebrate remains, 
248. 
locality of implements in gravel, 
262. 
Indian Hill, near Placerville, 101, 111. 
near Camptonville, 429. 
Indiana Hill, 89, 144, 145, 417, 418, 421, 425. 
operations of Blue Gravel Mining Company at, 
161. 
Indiana Hill and Quaker Hill, re-examination of region be- 
tween, 416-426. 
large deposits of uncovered 
gravel between, 304. 
Independence Hill, 91, 103, 112. 
Infusorial beds, connected with white lava, 223. 
Infusorial deposits of the Sierra Nevada, 220-231. 
in Nevada, 226, 227. 
Infusorial silica, origin of, 228-231. 
Towa Hill and vicinity, 89, 103, 105, 110, 119. 
channel at, 489. 
