Height fixed points

Altitude fixed points are permanently fixed markings (usually metal bolts) on structures, in rock or other point supports. The line-by-line official high-altitude fixed-point network 1 to 4. Order forms the basis for a uniform height reference system in Germany. Until 30.06.2017, the elevation reference system valid in Bavaria is the German main elevation network of 1912 - DHHN12 (EPSG:7699), from 30.06.2017 it is the German main elevation network of 2016 - DHHN16 (EPSG:7837). The DHHN92 height (EPSG:5783) is available as an additional height reference system. Altitude fixed points are given as a data sheet (with and without sketch) and as an elevation fixed point overview in the sheet section of the topographic map 1:25 000.