Usage Guidelines would not be possible without the many open data sources we use to provide our service.
These data sources each have their own licenses which place obligations upon us and may place them upon you as a user of our services as well.

Provide attribution

We require that you place an attribution statement and link similar to the following somewhere in your application if you are using

This can be combined with attribution for other data sources. Here's some HTML to get you started:

© <a href=""></a>, <a href="">OpenStreetMap</a>,
and <a href="">others</a>.

Data sources

For full license information for all data sources, please see the following pages:

Last updated February 27th, 2019