List of Figures | | | ii |
Plates | | | iii |
Preface | | | v |
Chapter | | | | |
I. | The Development of the Oregon Trail as a National Highway | | 1 |
II. | The Significance of the Trail | | 28 |
III. | The Relation of the Trail to its Natural Environment: I. In the Loess Region | | 55 |
| Jefferson County | 59 | |
| Thayer County | 67 | |
| Nuckolls County | 75 | |
| Clay County | 82 | |
| Adams County | 86 | |
IV. | The Relation of the Trail to its Natural Environment: II. In the Platte Valley | | 96 |
| Lowland Trail | 100 | |
| Terrace Trail | 112 | |
| The South Platte Crossing | 132 | |
V. | The Relation of the Trail to its Natural Environment: III. In the North Platte Valley | | 137 |
| In the North Platte Valley | 146 | |
| Morrill County | 151 | |
| Scotts Bluff County | 157 | |
VI. | Resume | | 167 |
Bibliography | | | 175 |