88 
INDEX. 
Page. 
Mission Creek drainage system, location 
and character of 19-20 
Missis'sippian rocks, character and occur- 
rence of 25-26 
Mogul Creek, fossils on 38 
location of ' 20 
Montana Creek, prospecting on 52 
Mosquito Creek, schists near, view of 28 
Mosquito Fork, gold in place on 48-49 
location of 19, 46 
rocks on 47-40 
Muck, thickness of 42,43, 
47, 48-49, 55, 58, 62, 75, 77, 80, 81-82 
Myers Fork, gold on 50 
location of 46 
rocks on 47 
N". 
Napoleon Creek, gold on 39, 52 
rocks on 34 
Nugget Creek, conditions on. 56-57 
Nugget Gulch, origin, course, and charac- 
ter of 52 
Nuggets, occurrence of 40, 
43, 44, 45, 57, 60, 62, 64, 65, 75, 77, 82 
O. 
O'Brien Creek, location of 19 
Oliver, R. B., work of 14 
Open-cut method, use of . . 43,50,61,62,64,76,78,79 
view of 62 
Owl Creek, work on 44 
P. 
Pack train, freighting by 10-12 
Paige, Sidney, work of 67 
Passage to Fairbanks, cost of 69 
Pedro, Felix, gold discovered by 67 
Pedro Creek, character of 70-71, 75 
developments on 76-77 
gold on 67, 75-77 
location and course of 70-71 
rocks on 73-74 
sluicing on, view of 70 
source of 67 
Pedro Dome, location and height of 71 
rocks of 73 
Pelly gneiss, character and occurrence of. . 25-27 
Permian rocks, character and occurrence 
of 25-26 
Peters, W. J., work of 13, 66 
Poker Creek, character and location of 42 
stream scraper on, view of 38 
Poplar, occurrence of 71, 72 
Populus arctica, occurrence of 38 
Hookeri, occurrence of 38 
latior, occurrence of 38 
Richardsoni, occurrence of 38 
Porcupine Creek, location of 61 
Porcupine Dome, location and altitude of. . 21 
Post- Eocene rocks, character of 25 
Pre-Devonian rocks, character of 25 
Prices, statement of 10-11 
Prindle, L. M., portion of geologic man ' . 25 
work of (.7 
work in charge of 14 
Page. 
Purington, C. W., work of 67 
Pyrites, occurrence of 28, 40, 78 
Q. 
Quartz, gold in 41,65 
Quartz-diorite, gold in 48 
Quaternary rocks, character and occur- 
rence of 25, 34-35 
Quercus furcinervis, occurrence of 38 
platania, occurrence of 38 
R. 
Railroad, proposed construction of 70 
Rampart, supplies from 68 
Rampart formation, character of.. 25,27, 31-32,37 
gold in 26 
occurrence of 25-26, 31-32, 58 
Rampart region, character and develop- 
ment of 11 
gold in, discovery of 9 
investigation of 13 
location of and trails to 11 
Roads, character and location of 69-71 
See also Trails. 
Road houses, location and character of 17, 44 
Robinson Creek, rocks near 40 
Routes of travel, location of 9-10 
See also Roads; Trails. 
Rutile, occurrence of 78 
S. 
St. Michael, supplies from 69 
Sawmills, erection of 12 
Schists, gold in 28, 41, 73-74 
view of 28, 30 
Schrader, F. C, on Mission Creek forma- 
tion 34 
work of 13 
Sedimentary rocks, character of 26-35 
occurrence and origin of 23-24 
Sequoia brevifolia, occurrence of 38 
Langsdorrii, occurrence of 38 
Seven tymile area, creeks of, conditions on.. 54-58 
Seventymile Creek, aqueduct over, view of . 56 
bench on, view of 20 
course and character of 20 
gold on 35 
gravels on 35 
navigation on 20 
rocks on and near 20, 24, 31-32, 37 
trail to 11 
tributaries of 20 
Seventymile drainage system, location and 
character of 20-21 
Seward Creek, rocks near 56 
Shales, gold in. 49 
Sluicing, view of 70 
Sonickson Creek, origin, course, and char- 
acter of 55-56 
Spruce, occurrence of 12, 71-73 
Spurr, J. E., on annual glaciers 66 
on Birch Creek schists 27 
on igneous rocks 35-36 
on Fortymile formation 29 
on Mission Creek formation 34 
on Pelly gneiss 27 
on Rampart formation 27, 31 
work of 13 
