Fig. 13

Location of the 1312 working face and observation stations. (The map was generated by the authors with the help of ArcGIS 10.6 (https://support.esri.com/en/download/7583) and does not require any permission from anywhere).

Location of the 1312 working face and observation stations. (The map was generated by the authors with the help of ArcGIS 10.6 (https://support.esri.com/en/download/7583) and does not require any permission from anywhere).