LGRB-BW RAW: Raw material extraction in open pit mining (points)

The collection centres recorded in the database have a unique name (operating ID) consisting of the TK25 sheet number and a serial number (archive number, Arnum for short). The following means: (1) Arnums up to and including 99: Extraction sites that have been collected since the mid-1980s as part of the raw material security concept. (2) Arnums from 100 up to and including 299: Collection points that were collected in the 1950s. (3) Arnums from 300: Mining sites whose mining was completed before the mid-1980s. The survey is carried out by the raw material geologists of Ref. 96 in the field (mostly in connection with the processing of a KMR50). The legal and high value of the extraction site refers to the location of the scale — if there is no scale available to the main access point of the extraction site — in the case of old mining, the centre of the extraction office is also often indicated.