Terrain data credits

Our self-hosted elevation tiles use open Mapzen terrain data. Regional zoom 11–12 tiles retain the upstream samples. A versioned Baku correction averages decoded zoom-13 heights into zooms 10–12. The browser interpolates coarser worldwide data where finer tiles are unavailable and clamps negative land-surface heights to sea level.

Source datasets · Attribution and licensing details

• ArcticDEM terrain DEMs were created from DigitalGlobe imagery, funded under National Science Foundation awards 1043681, 1559691 and 1542736.
• Australia terrain data © Commonwealth of Australia (Geoscience Australia) 2017.
• Austria terrain data © offene Daten Österreichs — Digitales Geländemodell (DGM) Österreich.
• Canada terrain data contains information licensed under the Open Government Licence — Canada.
• Europe terrain data produced using Copernicus data and information funded by the European Union — EU-DEM layers.
• Global ETOPO1: DOC/NOAA/NESDIS/NCEI — National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce. U.S. government material is not subject to copyright protection within the United States.
• Mexico terrain data: INEGI, Continental relief, 2016.
• New Zealand terrain data Copyright 2011 Crown copyright (c) Land Information New Zealand and the New Zealand Government. All rights reserved.
• Norway terrain data © Kartverket.
• United Kingdom terrain data © Environment Agency copyright and/or database right 2015. All rights reserved.
• United States 3DEP and global GMTED2010/SRTM terrain data courtesy of the U.S. Geological Survey.