Mining Grid of Andalusia

Article 75 of Law 22/1973 of 21 July on Mines and the General Regulations for the Mining Regime, approved by Royal Decree 2857/1978 of 25 August 1978, in Article 98 thereof, defines the mining grid as the volume of indefinite depth whose surface base is between two parallels and two meridians, the separation of which is twenty seconds sexagesimal, which must coincide with whole degrees and minutes and, where appropriate, with a number of seconds which must necessarily be twenty or forty seconds. It shall be indivisible, with the exception of cases of excess referred to in the Seventh Transitional Provision and of surfaces which, not completing a grid, extend from one of its sides by extension of meridians or parallels, to lines bordering the national territory and territorial waters.
The mining grids whose surface extent exceeds the border lines of the national territory, territorial sea and continental shelf, shall be reduced in the part exceeding these limits.
The Mine Service has created an information layer that collects grids within the territory of the Autonomous Community of Andalusia.