Cairn Swiss Central Alps Offline Map Data Notice
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Package: swiss-central-alps-2026.09.05.cairnmap
Data snapshot: 2026-09-05T20:22:06Z
Boundary (WGS 84): 7.05,45.95,9.03,47.30

OpenStreetMap-derived database
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This package contains an adapted database derived from
© OpenStreetMap contributors. The OpenStreetMap-derived portion is made
available under the Open Data Commons Open Database License 1.0:

https://opendatacommons.org/licenses/odbl/1-0/

Attribution and contributor information:

https://www.openstreetmap.org/copyright

Pinned source snapshot distributed by Geofabrik:

https://download.geofabrik.de/europe/alps-260905.osm.pbf

The downloadable .cairnmap file is the adapted database offer. Its pinned
source checksums and transformations are recorded in source-ledger.json,
distributed alongside this notice. The corresponding reproducible build files
are maintained in the private Cairn application repository. The downloadable
.cairnmap remains the complete, machine-readable adapted database offered to
recipients.

Copernicus DEM-derived contours
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produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus
Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European
Union and ESA; all rights reserved

Dataset and licence/user-rights information:

https://dataspace.copernicus.eu/explore-data/data-collections/copernicus-contributing-missions/collections-description/COP-DEM

The source-ledger.json file records the Copernicus DEM tiles, pinned SHA-256
checksums, and transformations used to produce the contour layer.

No endorsement by OpenStreetMap, Geofabrik, DLR, Airbus, the European Union,
or ESA is implied. Terrain contours are planning context and are not a
substitute for official navigation or safety information.