Map of the Navajo Country, Arizona, New Mexico, and Utah (Herbert E. Gregory, U.S. Geological Survey Water-Supply Paper 380, plate 1, 1916)
Herbert E. Gregory’s survey map of the Diné and Hopi country between the Colorado, the San Juan and the Puerco: the trails between springs, trading posts and missions, the reservation lines, and the routes of the explorers before 1909.
Source
| Map | The Navajo country : a geographic and hydrographic reconnaissance of parts of Arizona, New Mexico, and Utah |
|---|---|
| Author | Herbert E. Gregory, USGS, 1916 |
| Archive | Internet Archive |
| Rights | Public domain. Published 1916 — before 1931, so public domain in the United States. Evidence |
| Accuracy | About 7 km (RMS 1.6 km at 21 control points). Placed by hand in a map-queue session and approved by a person. If something sits in the wrong place, members can fix it with Fix placement on the map. |
| Method | Placed by hand: a second-order polynomial fit to 21 places read from the scan and matched to their positions today. See the methodology. |
| Version | 1.0.0, updated 2026-09-30 |
| Covers | Arizona, New Mexico, Utah |
Downloads
- Google Earth overlay (KMZ) — free (4.7 MB)
- GeoTIFF, tinted trails, EPSG:4326 (8000 × 5325; QGIS, ArcGIS) — free (15.6 MB)
- Print sheet over today’s map (3600 × 2200 PNG) — free (2.8 MB)
Project Homeland
This map is open for tracing into Project Homeland, one map of the trail network melded from every traced source. Members trace a trail by clicking along it: Trace a trail on the map.
Changelog
- 1.0.0 (2026-09-30): First release: placed by hand at 21 places. From the Native Routes sources register; U.S. Geological Survey Water-Supply Paper 380, plate 1 (the book’s record at the Internet Archive).
Credits
- From the Native Routes sources register; U.S. Geological Survey Water-Supply Paper 380, plate 1 (the book’s record at the Internet Archive)
- Georeferencing: Native Routes
- Scan: Internet Archive
Control points
The full list of control points with residuals is in control-points.geojson. Historic names indexed for search: names.geojson.
Something on this map sits in the wrong place? Members can show where with Fix placement on the map — confirmed fixes are tested against the map’s other control points each night and credited here. For anything else, report a problem.
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