CONTENTS

CHAPTER		PAGE
I	The Rodeo	[1]
II	The Camping Trip	[31]
III	Living off the Wilderness	[58]
IV	With the Air Patrol	[84]
V	A Daring Feat	[95]
VI	The Incendiaries	[110]
VII	The Cave	[134]
VIII	The Snow-Slide	[154]
IX	Ted’s Fossil Dinosaur	[163]
X	How the Earth Was Made	[176]
XI	The Valley of Ten Thousand Smokes	[201]
XII	Gold!	[226]
	Glossary and Pronouncing Dictionary of Geological Terms Used and Key to Geologic Time	[263]

UNEXPLORED

CHAPTER I

THE RODEO

Ted Smith, flinging his long legs off a frisky bay, grinned delightedly as his eye caught a flag-decked touring car.

“Are you riding?” called the boy at the wheel.

“Sure AM!” drawled the ranch boy. “How about yourself?”