ILLUSTRATIONS
Francis Rolt-Wheeler
The Chief Geographer of the United States, surveying the
Sierras, with Assistant Topographer
Frontispiece
FACING PAGE
In the Home of the Kodiak Bear
8
A Lofty Spouter
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Water Enough for All
30
In the Tamarack Swamp
44
A Tangle of Swamp
54
Measuring Stream Flow
72
Difficulties of Work
76
Dense Southern Palm Grove
82
Grand Canyon of the Colorado
94
An Awkward Country to Work In
98
"How in the World am I going to get up there?"
108
A Hard Point to Measure
118
Twenty-seven Miles from Water
152
In the Death Valley
170
Crossing a Swollen Stream
176
Bridged by "Double Tree"
180
If He Should Slip!
186
A Grim and Icy Barrier
252
A General View of Tyonok
256
Farewell to Civilization
260
Where an Eternal Gale Rages
270
Morning after the Blizzard
278
Resting after a Long Pull
288
A Short but Dangerous Rapid
300
Skinning a Caribou
306
The End of a Hard Climb
310
The Only Bit of Rock for Miles
314
In Icy Water under a Burning Sun
348
Thus Far with the Boats, and no Farther!
354
Winter's Threat Almost Fulfilled
370
Eskimo Saviors
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Pointing away from Winter
376
THE BOY WITH THE U.S. SURVEY
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