[Transcriber's Note: Bold text is surrounded by =equal signs= and italic text is surrounded by _underscores_.] THE PIONEER BOYS OF THE YELLOWSTONE [Illustration] OR: LOST IN THE LAND OF WONDERS THE YOUNG PIONEER SERIES BY HARRISON ADAMS ILLUSTRATED [Illustration] THE PIONEER BOYS OF THE OHIO, Or: Clearing the Wilderness $1.25 THE PIONEER BOYS ON THE GREAT LAKES, Or: On the Trail of the Iroquois 1.25 THE PIONEER BOYS OF THE MISSISSIPPI, Or: The Homestead in the Wilderness 1.25 THE PIONEER BOYS OF THE MISSOURI, Or: In the Country of the Sioux 1.25 THE PIONEER BOYS OF THE YELLOWSTONE, Or: Lost in the Land of Wonders 1.25 _Other Volumes in Preparation_ [Illustration] THE PAGE COMPANY 53 Beacon Street Boston, Mass. [Illustration: "SOME OF THE BRAVES STARTED TO FASTEN THE PRISONERS TO TWO TREES" (_See page 219_)] The Young Pioneer Series THE PIONEER BOYS OF THE YELLOWSTONE OR: LOST IN THE LAND OF WONDERS By HARRISON ADAMS Author of "The Pioneer Boys of the Ohio," "The Pioneer Boys on the Great Lakes," "The Pioneer Boys of the Mississippi," "The Pioneer Boys of the Missouri," etc. [Illustration] Illustrated by WALTER S. ROGERS THE PAGE COMPANY BOSTON [Illustration] MDCCCCXV [Illustration] _Copyright, 1915, by_ THE PAGE COMPANY _All rights reserved_ First Impression, June, 1915 PRINTED BY THE COLONIAL PRESS C. H. SIMONDS CO., BOSTON, U. S. A. PREFACE DEAR BOYS:-- In my last story, the title of which was "The Pioneer Boys of Missouri," I half-promised that later on I might continue the recital of Dick and Roger Armstrong's fortunes, and carry them further along their pathway toward the far-distant Pacific. The opportunity to redeem that promise having been given to me, I gladly meet you once more in these pages; and I trust this story will afford you quite as much pleasure in the reading as I have taken in the writing. It will be remembered that we left the two pioneer lads in the winter camp of the Lewis and Clark exploring party. This company had been sent out, chiefly through the personal influence of the President at Washington, to find a way across the newly-acquired country, and blaze a path to the Pacific. They had gone into camp close to the quaint Mandan Indian village, far up on the Yellowstone River, which stream they had been following since leaving the Missouri.