OpenTopoMap
OpenTopoMap provides a familiar terrain-oriented map with contours, relief, trails, and named features, plus documented tile use and attribution.
Limitations: It is not an official survey or navigation product. Coverage and accuracy follow source data, and tile use is subject to service and attribution rules.
Why it is useful
OpenTopoMap provides a familiar terrain-oriented map with contours, relief, trails, and named features, plus documented tile use and attribution. This resource is especially useful for Viewing a topographic-style map built from OpenStreetMap and elevation data. Review the current instructions and limitations from OpenTopoMap contributors before relying on it for important work.
Limitations
It is not an official survey or navigation product. Coverage and accuracy follow source data, and tile use is subject to service and attribution rules.