Columbia subject headings:
Harvard subject headings:
Geochemical prospecting--England--Lake District--Maps.
Mines and mineral resources--England--Lake District--Maps.
Sediments (Geology)--England--Lake District--Maps.
Princeton subject headings:
Geochemical prospecting--England--Lake District--Maps.
Mines and mineral resources--England--Lake District--Maps.
Sediments (Geology)--England--Lake District--Maps.