Speilsalen
Speilsalen ( The Hall of Mirrors ) was a natural glacial formation caused by a river underneath a glacier in the Trollheimen mountains in the municipality of Oppdal in Trøndelag county , Norway . 
<triplet> Speilsalen <subj> glacier <obj> instance of <triplet> Trollheimen <subj> Trøndelag <obj> located in the administrative territorial entity <subj> Norway <obj> country <triplet> Oppdal <subj> Trøndelag <obj> located in the administrative territorial entity <subj> Norway <obj> country <triplet> Trøndelag <subj> Oppdal <obj> contains administrative territorial entity <subj> Norway <obj> country <triplet> Norway <subj> Trøndelag <obj> contains administrative territorial entity