Avalanche.org: Map of avalanche forecasts for the United States. CalTopo: Backcountry map for planning with slope angle, topo and fire layers.
| Avalanche.org | CalTopo | |
|---|---|---|
| Category | Hiking, Ski & Outdoor Maps | Hiking, Ski & Outdoor Maps |
| Coverage | United States | Worldwide, best in the US |
| Updates | Daily | Periodically |
| Data source | US avalanche centres | USGS, satellite imagery and many other layers |
| Made by | American Avalanche Association | CalTopo |
| Price | Free | Free + paid plan |
| Account | No account needed | Free to view, account for extras |
| 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 Avalanche.org
- Danger levels by forecast region
- Links to local avalanche centres
- Education resources
What you can do with CalTopo
- Topo maps with slope-angle shading
- Draw and measure routes
- Print large maps
- Many specialist layers
Summary based on public information. Check each map's website for current features and prices.