News are distributed via the blog (in German).
You can report bugs at the map's github-page , where you can also find the complete source code.
The hillshading map tiles are generously provided by the OpenMapSurfer project of Heidelberg University unter the following copyright terms:
Map data © SRTM; ASTER GDEM is a product METI and NASA, Imagery GIScience Research Group @ Heidelberg University
The 'administrative boundaries' map tiles are generously provided by the OpenMapSurfer project of Heidelberg University unter the following copyright terms:
Map data © Openstreetmap contributors; Imagery GIScience Research Group @ Heidelberg University
The data of german nature protection areas are provided by the Bundesamt für Naturschutz (Federal Agency for Nature Conservation) under the GeoNutzV law. Additionally, we have an explicit written permission.
The displayed data sets are merged by the Bundesamt für Naturschutz from data sets of the individual federal states. The Bundesamt für Naturschutz does not provide any warranty regarding the precision and correctness of the data.
On the website of the Bundesamt you can find an official map showing the protection areas.
The displayed geocaching data is gathered by the Opencaching-API (OKAPI) from the national Opencaching sites Opencaching.de, Opencaching.pl, Opencaching.nl, Opencaching.org.uk, Opencaching.us, Opencaching.ro and is subject to the associated data licenses.
Waypoint projection creates a new marker d meters away from the source marker with a bearing angle of β°,