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Way History: 198719510
Version #1
Adding roads and refining date range, Canyon area, Yellowstone N.P.
- Edited about 3 years ago by GeoDave5280
- Changeset #26941
Tags
| description | Culper, Mary Shrivers, 1994, THE HISTORY OF THE CONSTRUCTION OF THE ROAD SYSTEM IN YELLOWSTONE NATIONAL PARK, 1872-1966: Historic Resource Study, Volume I, U.S. National Park Service. |
|---|---|
| highway | unclassified |
| source | USGS: 1907 Canyon 1:125000 topographic map |
| start_date | 1893 |
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