HL Swaledale (Midnight Photo) Tags: old archaeology architecture danger dark underground dangerous mine arch dale yorkshire arches mining hidden level mines portal exploration lead north yorkshire dales arching unstable yorkshiredales swaledale adit abandoned mine leadmine adits leadmine hiddenworld theadales underground exploration yorkshiredalesnational park mine exploration oldgang oldgang mines
HL Swaledale (Midnight Photo) Tags: old archaeology architecture danger dark underground dangerous mine arch dale yorkshire arches mining hidden level mines portal exploration lead northyorkshire dales arching unstable yorkshiredales swaledale adit abandonedmine leadmine adits leadmines hiddenworld thedales undergroundexploration yorkshiredalesnationalpark mineexploration oldgang oldgangmines oldworkings oldgangmine mininglandscape abandonedlevel