Schaalsee
It forms part of the border between Schleswig-Holstein ( district Herzogtum Lauenburg ) and Mecklenburg-Vorpommern ( districts Ludwigslust-Parchim and Nordwestmecklenburg ) . 
<triplet> Schleswig-Holstein <subj> Herzogtum Lauenburg <obj> contains administrative territorial entity <subj> Mecklenburg-Vorpommern <obj> shares border with <triplet> Herzogtum Lauenburg <subj> Schleswig-Holstein <obj> located in the administrative territorial entity <subj> Ludwigslust-Parchim <obj> shares border with <subj> Nordwestmecklenburg <obj> shares border with <triplet> Mecklenburg-Vorpommern <subj> Schleswig-Holstein <obj> shares border with <subj> Ludwigslust-Parchim <obj> contains administrative territorial entity <subj> Nordwestmecklenburg <obj> contains administrative territorial entity <triplet> Ludwigslust-Parchim <subj> Herzogtum Lauenburg <obj> shares border with <subj> Mecklenburg-Vorpommern <obj> located in the administrative territorial entity <subj> Nordwestmecklenburg <obj> shares border with <triplet> Nordwestmecklenburg <subj> Herzogtum Lauenburg <obj> shares border with <subj> Mecklenburg-Vorpommern <obj> located in the administrative territorial entity <subj> Ludwigslust-Parchim <obj> shares border with