OpenStreetMap: The free, editable map of the world, made by millions of mappers. The National Map Viewer: Official US topographic data: elevation, hydrography, boundaries and imagery.
| OpenStreetMap | The National Map Viewer | |
|---|---|---|
| Category | Map Platforms & National Atlases | Map Platforms & National Atlases |
| Coverage | Worldwide | United States |
| Updates | Continuously (community edits) | Periodically |
| Data source | Community contributions | US Geological Survey |
| Made by | OpenStreetMap Foundation and contributors | US Geological Survey |
| Price | Free | Free |
| Account | No account needed | No account needed |
| On phones | Works well on phones | Best on a computer |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with OpenStreetMap
- Several map styles (standard, cycle, transport, humanitarian)
- Directions
- Edit the map yourself
- Open data download
What you can do with The National Map Viewer
- US topographic base layers
- Elevation and hydrography
- Free data downloads
Summary based on public information. Check each map's website for current features and prices.